You're also free not playing their games. I grew up hosting my own game servers so I'm no stranger to that, but I also enjoy games that are not compatible with that.
It also doesn't really matter if they have kernel stuff or not, unless you game on a different user a user space process can already read all your files and even memory of your processes.
It also doesn't really matter if they have kernel stuff or not, unless you game on a different user a user space process can already read all your files and even memory of your processes.