All of these things can be done on linux with no need for the command line whatsoever but you might have trouble with running multiplayer vidya that don't support linux natively unless they're one of these (there are other multiplayer games that also work)
these days my home desktop is mostly web, piracy, videos, and vidya, nothing terribly fancy
i realise the vidya will likely mean keeping a windows partition anyway
Lutris+Wine has been great for me, even on heavier/newer stuff like UE4 games
90% of what I play could run on a toaster from 2006 though so ymmv
All of these things can be done on linux with no need for the command line whatsoever but you might have trouble with running multiplayer vidya that don't support linux natively unless they're one of these (there are other multiplayer games that also work)