A lot of games, honestly. I'm overwhelmed trying to remember them all...
I will say Minecraft because it's extremely popular. Maybe I will play it one day, but for now I just haven't.
Some more I remember, mostly from looking through this thread:
Skyrim
Fortnite
Pokemon Go
Final Fantasy (This has potential to change because 7 is on my Switch lol. Just not played by me)
Five Nights at Freddy's
Candy Crush (Is this even still relevant?)
Among Us
Fall Guys
Genshin Impact
Elden Ring
MegaMan (Nothing against it, it just looks too hard for me)
Roblox
A LOT of popular free games or popular competitive online games, actually. I couldn't remember all of them.
Also pretty much anything that's very violent/gory or realistic war-themed.
Oh, and anything rated M. That's just not for me.
I've probably forgotten some others, but I tried my best.