The only game confirmed to be in launch window is Spiderman.
I actually think something like Little Big Planet's spin-off is more likely to be close to PS5's release date than GT7 and Ratchet (the "and" is important, since one of those could release before Sackboy, but I don't expect both of them to).
Huh. So they saving the big guns for after the launch dust settles to keep demand going. That has implications but I’ll hold judgement until dates are concrete