I feel like your “favorite game ever” should never change with extremely rare exceptions. If you keep switching your favorite game every time a new one comes out, that’s just weird and flimsy.
My favorite game is still COD: World at War. That came out in 2008, and I first played it in 2020. That was my favorite game then, and I haven’t faltered yet. Have there been great games this year that I love? Of course, but I’m not constantly getting new favorites.
Crab Champions (2023) is ONE of my favorite games, but World at War has such an impact on me, and I still find myself playing it all the time. Same thing with Super Monkey Ball 2, a game from 2001.