wouldn’t say that because during World War I, the Italian front was predominantly fought in mountainous terrain, which probaly the reason he carries the gun
Most of the games work. The only problem linux has right now is anticheat in some games. But you cann look at https://www.protondb.com/ to check which games work.
We don’t, or at least I have never tried it, but we have different card games for various types of cards, and we play these games more often than ‘normal’ card games. We also still have French playing cards for games like poker, blackjack, solitaire, and others, but they’re just not our main type of cards.