Is it just me or is it weird that we haven’t seen any major third-party titles confirmed for the Switch 2 yet? No sign of big franchises like Resident Evil, Call of Duty. Even Ubisoft and EA are super quiet.

Could it be that most third-party studios still don’t have dev kits? 

It’s strange considering how well the original Switch sold. You’d think publishers would be eager to jump on board early this time. Any insight?

The Switch has sold insanely well, the same can't be said for the 3rd party software overall on the platform. 

In the top 30 all-time sales list, only 3 titles are non-Nintendo titles or franchises (Monster Hunter, Stardew Valley, and Minecraft). Minecraft having surprisingly low  sales at around 6 million also shows us something about the overall interest level of 3rd party title shoppers on the Switch (heck; I think it even passed 2 million globally on the Vita with its poor installed base). No 3rd party game besides Minecraft seems to have sold beyond the 5 million mark on the Switch, only a handful managed 4 million. Meanwhile, a whooping 21 1st party titles have sold 12 million or above; that's 21 titles selling twice or more that of the highest selling 3rd party game, that's too much not to be pegged as a significant trend on the platform. 

In the top 100 list, only 23 games are 3rd party, of which almost every single one is an Indie title, puzzle/board game, or rhythm game. The odd title which falls under more classic AAA, or at least AA status, are titles that barely scrape above 1-1.5 million in sales (RE: Revelations Collection, Dragon's Dogma 2, Dark Souls: Remastered, are among those).

Nintendo platforms are sometimes insane money-making machines, for Nintendo, but their strained relationship with 3rd parties is well-known, and not built wholly on spite and childishness (as many would otherwise tell you). The Wii and Wii U had the same issue when it came to selling 3rd party titles, this simply has not been Nintendo's strong suit since the early nineties and back. 

We are all wondering the same thing

But I think that's because Nintendo doesn't disclose the numbers of 3rd party games but I think 3rd party games sold well on Switch 1. 

When it comes to Nintendo's home consoles, that question has been asked since pretty much the end of the SNES era

I'm hopeful that the Switch will get better third-party support since DLSS will be more prominent rather than purely through horsepower, but like the Switch 1, you wonder what kind of longevity it will have.

Alot of people do either:

a) Buy it as a family unit, for the kids. Thus Nintendo titles is known family friendly, and thus its mainly whats bought for it.
   (ei. Mom/dad buys a unit, and occassional a few nintendo IP here and there)

b) Its a person, that already has a more powerful console (PS5/XSX)... and thus gets the better experience on that.
    So they only buy games they want to play on the go (with the switch) (few and certain titles only) or titles that are exclusive to the Switch.

Now this isn't everyone that owns a switch, but a large portion of it.
Hence, 3rd party sales are much lower on Nintendo consoles traditionally.

Unless Nintendo sells alot of Switch's the situation likely won't improve anytime soon.
The 1st Switch, got decentish support.... but only after it turned out a runaway success sales story. 
If the Switch 2 repeats, then the same will follow.

We've heard about third partys that do well, I remember Devolver saying something to that regards, but as odd as it is to say, Nintendo's the most open about sales totals.

Yeah, Nintendo is the transparent one. It's baffling.

Minecraft at 6m and you believe it? The footnote on Wikipedia assigns this figure to physical sales of Minecraft in only Japan, France and Spain. So no digital sales included and only three countries being added up.

Your post looks a lot like you've made your conclusion beforehand and then tried to make facts fit. This explains the circular logic of "no big investments from AAA third parties to begin with, resulting in no 5m+ sellers for them, therefore their lack of investment is justified." Monster Hunter Rise is the only real AAA third party release on Switch and that one cleared 5m without problems. The rest are late ports or low effort ports, so no surprise that they didn't sell huge numbers.

What's your guess for the question how many millions of third party software were sold on Switch 1 in total?

I'd say 2 reasons:

1) Switch 2 ports will still require significant resources and so they will be late ports for AAA, not day 1 releases. Similar to hogwarts on Switch 1, I think they'll be announced later once the devs have started the earnest work. Right now I doubt it's on their priorities.

2) lots of smaller devs that would be desperate to have their games being releasing on Switch 2 are late to receive dev kits

I think the bigger problem is that there are so few first party games announced. In terms of major releases, we have DK, Air Riders, Tomodatchi thingy, and a couple of crossgen titles.

So, idk whats up. It's possible it's a planned strategy. That Nintendo figures it's going to sell as many as it can make so far, so why not hold off till the enthusiasm dies and announce more. Or maybe there's just not a lot in the pipeline.

Either way, we do have a few positive signs. SF6 is on it, and this is really the first time Nintendo has actually had the most current version of Street Fighter on its a console since SNES. FF7 Remake is on the way, Elden Ring, and Madden for the first time since the cube. Hopefully the lineup in general will be fleshed out more in the coming weeks.

That really doesn't track. Because third parties keep releasing games on Switch. Granted not as much as PS5, but easily the best third party support possibly since the SNES days. I don't think they're doing it to lose money.

You mentioned Dragon's Dogma 2. I assume you mean Dark Arisen, because I don't think 2 is on Switch. But, 2 sold about 3.7M on Xbox/PS5/PC. So in context, "barely scraping above 1m"doesn't seem so bad. We have some other positive signs too. DB FighterZ sold about 2.5m on Switch, about 1/4 of its overall sales.

Comparing the sales of third party games on Switch has two problems. First off, you seem to be going off of wikipedia, which is not a great idea. They simply don't have access to a lot of the data, so unless companies share it. For instance, the 6 million you quoted for Minecraft is just based on what we have public knowledge of, which according to the Wikipedia page, is just the data from Famitsu, Gematsu (for France), and Spain. That likely does not include digital figures and more importantly doesn't include the US and misses a huge chunk of the EU. I think it is likely that the actual sales would be closer to 10 million if we're being very conservative. Likewise Dark Souls Remastered's info seems to come from CESA which may only track Japanese sales.

The bigger problem is that Nintendo games sell really well. Minecraft's 6 million may put it at 30 on the Switch list, but if we keep Wikipedia as our source, it would have been in the top 20 on PS4 and the second best selling game on PS5. Sticking to official figures, I believe Marvel's Spiderman was PS4's best selling first party title with about 22 million in sales, but it would have been the 8th best selling first party on Switch. But relative placement on the top sellers doesn't necessarily mean lower sales and profit.

So, I really don't think we can conclude, at least based on what you've posted, that third parties are doing poorly. Many just don't report sales at all and many don't break it down by platform. But considering the volume of games released by Switch, I think it's fair to say that it is a profitable platform for many developers.