Here is another game that given away for free as part of that PlayStation Play at Home initiative in 2021: Abzu. It is a short game where you play a diver going on an adventure underwater. It looks nice and controls well. Traversal on land is slow and that is my only criticism with the game.
I do not know if this is a dealbreaker for some, but for some reason, this game runs at 40fps on the PS5. I played this on my PS5 and I did not know this. The game was still playable.
Source: https://www.resetera.com/threads/ps5-games-tech-details-resolution-frame-rate-backwards-compatibility-and-more.324880/#post-51388633
I do not know if this is a dealbreaker for some, but for some reason, this game runs at 40fps on the PS5. I played this on my PS5 and I did not know this. The game was still playable.
Source: https://www.resetera.com/threads/ps5-games-tech-details-resolution-frame-rate-backwards-compatibility-and-more.324880/#post-51388633