Crash also survived. Granted it was a second party, but so is Pokémon. Difference is Sony/Naughty Dog never managed to acquire the IP unfortunately. Same goes to Spyro

I think the only Sony published games that really disappeared were Twisted Metal and Jak. The others were simply never popular in first place

I will say PS1 have a strong Sony identity, because even if Sony did not develop and own some IPs they strongly associated their brand and did the marketing to sell those games 

But PS2 less so, with third parties taking over with GTA, Madden NFL, Call of Duty, FIFA, Guitar Hero, etc but also other publishers strongly associated to Sony started investing in their own branding (Capcom, Square, etc)

A good clue on how much some IPs are associated to Sony during PS1 and PS2 era is checking how less popular they became during PS3 days and how quickly they became multi-plat with fast transition to Xbox support 

The situation Nintendo created at the time of the Wii/DS (low-cost game selling a monstrosity) has turned into this problem for the industry.

Xbox kinda destroyed themselves through their own atrocious mismanagement, they didn't really need much help from Sony.

The almost total lack of killer games for the Series and then the decision to release its games on PS/Nintendo sealed its fate.

Also as a PC gamer... I can mimic your sentiment to a point.

For me, buying the PS5 on launch day was not even about PS5 games, it was about PS4 games running better than they ever did, I am a big advocate for Physical and Backwards compatibility... Games that never got the "enhanced" treatment on Xbox, tend to look and run better on Playstation. I.E. Dragon Age Inquisition is full 1080P on PS5, 900P on Xbox Series, not a big difference in the grand scheme, but it's important to me.
I have managed to accrue a decent PS5 physical library, but for the most part... I actually spend very little time gaming or collecting for it, I use at as a blu-ray player more often than not. - Most of the games end up on PC, so I have little reason (Outside of being a typical collector) to actually power it up.

But this is also an even more catastrophic issue for me with Xbox.
About this time last-generation I had about 200 physical games easily on my shelf for Xbox One.
Xbox Series? I have about 40. - No point me buying a game like Oblivion remastered if it's on PC, it's cheaper, runs better, looks better -and- it's digital only. - If it's digital only, I'll just buy it on PC exclusively.

Switch actually dominated my wallet and game collecting the last few years... And even though the Switch 2 has started poorly with only a couple of games being "collectable" (Breath of the Wild, Mario Kart World, Tears of the Kingdom and Cyberpunk with Donkey Kong dropping a month later) there isn't that prolific release cadence of 3rd party's releasing full released cart games. - It's E-Waste Game Key Cards/Code in a box dominating the shelf, which makes my choice easier.

I don't see myself spending anywhere near the same level of cash that I did with the Xbox One/Playstation 4/Switch consoles due to the fall of physical and rise of digital, in essence I am being pushed out of the console market... And that's fine as well... More focus will be towards my PC.

I'm baffled that you think MS appear more 'composed' and 'coherent' considering how poor their transition to multiplatform has actually been.

Sony have been a lot more upfront with what you can expect a few years, and that has changed very little. 

Is moving into PC development a potential hindrance to Sony selling PS consoles? I don't think so, at least not on any sizeable level. The reality is that while PC gaming is at the best it has ever been, not everyone cares to own one. The fact that Xbox and PS are still selling is pretty indicative that there is a sizeable market that just wants a console for the convenience it offers. 

We'll need to see what Sony's strategy is going into PS6. Right now it appears to be a console that can be more affordable than it's output due to PSSR, and a handheld to attract this market that is slowly building up. We'll need to see how their software strategy changes. But they're making games. Experimenting with new forms of games. And if you own a PS5 you're getting them all, and for many people that is most likely enough.

Yeah I gotta raise an eyebrow too at the notion that Microsoft's strategy is more "coherent" than Sony's.

Microsoft's handling of Xbox this generation has been a complete mess, a scattershot of poorly thought out and even more poorly implemented policies, and the result is clear to see in the fact that their console business is basically dead.

People are still buying PS5s; virtually nobody is still buying Xboxes. 

PS5 is doing better than Xbox, but Xbox's decline seems increasingly deliberate. Since the original intention of the Xbox was to promote PC gaming (and thus Windows as an OS since Microsoft was a total monopoly back then) and PC gaming is both growing fast and thriving in both AAA and all niches, I wonder if they're thinking "Mission accomplished" and moving on to other ventures now. Though some hardware leaks seem to hint at a new Xbox console coming, and they're increasing their presence in the PC handheld market, so wait and see...

SONY on the other hand looks increasingly directionless with the PS5 and PC game releases, lack of compelling games, trend-chasing which lands them such disasters as Concord, the list goes on. While I don't think that either SONY, the PS5 or the PS6 are in any danger, they need to get a grip on the long run and find their own way of doing things just like Nintendo did eons ago to carve out their own piece of gaming lest they'll get drowned and swallowed by a sea of similarities which takes away all the uniqueness that the Playstation has left.

PS5 isn't just doing better than Xbox. It killed and buried it. It isn't true that Microsoft wanted to kill Xbox or that it had a coherent direction. Unless Microsoft Store and GamePass take off and compensate for Xbox''s death, moving to PC will prove beneficial mainly to Valve and Steam.

"Trend chasing" also landed Fate Grand Order (likely generated more money than any Nintendo game ever) and Helldivers 2.

"Lack of compelling games" according to who? Helldivers 2, AstroBot and Stellar Blade released last year and were more compelling than any Nintendo game from the same year.

Sony's direction is crystal clear. It's imo risky and bad in the long run coz their PC support is devaluing Playstation, but how is it directionless? Microsoft contradicted themselves and made ridiculous remarks more times than I care to remember.

I was going to say the same thing. PS1 had a ton of recognizable licences, like all the Psygnosis games (Destruction Derby, Wipeout), the Japan games (Parappa the Rapper, Minna no golf) and oddities like Medievil, plus Gran turismo...all of which were very popular.

They absolutely didn't wait for PS5 lol

because we're all saying the same thing.