Most of 1) and 2) works, check https://www.protondb.com/ https://www.protondb.com/ If you're into those things 3) is an issue due to various anticheat systems

Most of 1) and 2) works, check https://www.protondb.com/ https://www.protondb.com/ If you're into those things 3) is an issue due to various anticheat systems that don't yet run great on wine.