Exactly! Obviously, the Wii U coming out one year before PS4 and Xbox One was compared to them as they are all the same generation. The Wii U had an abnormal life span for a Nintendo home home console, only 4 1/4 years until the Switch came out in March 2017. Nintendo was forced to come out with a successor early as the Wii U was a BIG failure. Interestingly, the Switch came out roughly right in the middle of the life span of the PS4 and Xbox One before their successors came out in Nov. 2020. In other words, when the Switch came out, PS4 and Xbox One where full of life and strength. Naturally then, the Switch is compared to PS4 and Xbox One. The Switch is an anomaly in regards to generations: Although, a successor to both, the Wii U and 3ds, both regarded as 8. generation consoles, the Switch isn't really a 9. generation console, more like a 8.5 generation. Anyway, I don't mind if it is also compared to PS5 and Xbox Series X/S. They both won't beat it anyway.

Yes I think PS5 won't reach Switch numbers lol. That been said I expect PS5 to do PS4 numbers. Seems right.

PS5 is actually doing better than what PS4 was doing in Japan in the same timespan. While their totals up to week 24 are virtually the same (658,550 vs 658,735), PS5's weekly sales are much healthier (around 20-25k) compared to what PS4 was doing back then (5.5-7.5k).

Ps5 software was healthy too?

No, not for physical sales at least. Sony's latest earnings report does hint at a very high digital ratio but on the Famitsu charts PS5 titles are few and far between.

The 80% with count download-only games? If so you have dreadful software sales, in Japan. 

Japan has history of good physical sales, aways, besides digital sales growth. 

Doing slightly better now, but what in a year or 2? The PS4 was more successful than the PS3 in every region except Japan. The PSVita sold 1/4 of the PSP in Japan. The Playstation brand in Japan is heavily declining. I predicted that the PS5 will do 7-7.5 mil lifetime in Japan before it came out and still hold that prediction.

Still a good number actually. PlayStation will always have like 5-10M sales at least in Japan thank to all the japanese games and big J-RPG like Final Fantasy Saga. And of course thanks to the brand.

NS unbeatable again.
PS5 supply-constrained, nevertheless it's still the best of current gen launch-aligned, surely supply problems in its first year will damage lifetime sales at least a little bit, but it looks promising anyway.
PS4 suffering from a Wii-like final years drop, this year's Q4 sales will be crucial to reach GB lifetime.

I mean it only needs to sell what, another 3 million to beat Gameboy? Just over 4 million to hit 120? I think it can do that with likely another 2-3 years of being sold even if production and shipments naturally decrease. 

It would only need to sell, say, 2 million and change for the rest of this year, 1.5 million in 2022, 500k in 2023, those seem likely pretty easy numbers.