Riot Games talk Vanguard anti-cheat for League of Legends and why it's a no for Linux
(www.gamingonlinux.com)
Their post is a bunch of PR hidden by funnyspeak while not addressing people's concerns in any way. The worst is that they're officially ditching LoL on linux because reasons, they're forcing the anti cheat on windows BUT they can't implement it on MacOS because Apple won't allow it