Microsoft does have far more first-party than they did during the Xbox One days. 23 studios once the Bethesda deal closes it a lot more than the 5 they had just a few years ago. Obviously, once other difference is Microsoft releases all their games on PC now, and you can even play them on your phone with xCloud.
I'm still not convinced they'll keep Bethesda's games off Playstation, I expected timed rather than total exclusivity. As such Bethesda's studio won't carry as much weight as first parties normally would. But we'll see.
Bet with Liquidlaser: I say PS5 and Xbox Series will sell more than 56 million combined by the end of 2023.