So glad I switched to steam running on linux mint last week.
Doesn't EAC work on Linux?
googles
It sounds like it has for two years:
‘Apex Legends’ Now WORKS On Linux With Official EAC Support
I mean, I use Linux myself. But I don't know if Linux is a fix for "game I use may have vulnerabilities".
In theory, maybe Linux/Steam could isolate individual games (might be further along with Wayland than Windows is), but that's not how things work today. If you install software from Steam, it's got access to act as you, and if it has vulnerabilities that permit for remote compromise, then you'd be vulnerable as well.