> 1. The majority of the games do not support multiplayer on Linux, due to dependency on Windows-specific anticheat software.
Not even anti-cheat, just different implementations of things in the Linux and Windows versions. IIRC Paradox games don't have any strong anti-cheat, but Linux and Windows users can't play due to how their systems handle network time synchronization.
> 2. Many, many of the games themselves aren't totally stable on Linux. So, expect a crash or two at critical gameplay moments.
Many, many of the games themselves aren't totally stable on Windows, either. Bethesda games (Fallout, Skyrim) come to mind -- desktop Skyrim had all sorts of bugs and crashes on Windows.
And why would it crash only at critical gameplay moments? Sounds like FUD.