New android phone - Galaxy S21

What are the must have apps and (dont laugh) mobile games? Nothing too crazy just low attention time passers.

Or, if you have PC game reqs that run good with steam play/moonlight and a Razer Kishi controller I want those reqs too

@dielan
Best games for your phone:
N64 emulator
PS1 emulator
NDS emulator
GBA emulator
NES emulator

Yeah, and it seems that Xcom enemy unknown was translated prety well. I also play card thief and I spend an embarrassing ammount of time on original hillclimb racing. But the list above is the important part.