Gran Turismo 7 is freaking great, but I doubt that's your kind of game or you would have mentioned it.
If you didn't play God of War Ragnarok yet and have played the one before it, then easy choice. Same with Horizon Forbidden West, it looks amazing but GoW is the best game.
As people pointed, try Astro's Playroom and if you like it Astro Bot is your game, it's pure bliss from start to finish.
About exclusive indie games... Stray is not exclusive but kinda was as it was timed console exclusive on release, if you like cats you will LOVE it.