For many artists, not having their art copied would be an improved user experience, so should the OS prevent you from copying files tagged as copyrighted? Windows Defender already removes torrent software and gives scary warnings for LibreOffice [1] so it's not a big step.
[1] https://baronhk.wordpress.com/2021/09/13/microsoft-defender-...
If a "trusted developer" is one of the heuristics, then any kind of honest anti-virus should trust major free software developers/apps to at least the same degree as someone like Adobe or Riot.
Surely many, many people are willing to pay the price of running this anti-cheat that 'runs in the background' (not consuming many resources, mind you - the vgc executable isn't constantly running, only vgtray which is the tray icon and it's sitting at 640K), so this obviously isn't malware to them.
Torrent programs get silently deleted, LibreOffice and other FOSS installers get big scary warnings [1], installing an open-source audio package pops up no less than seven warning screens [2], but Riot can install a literal rootkit to only a single "this program will make changes to your computer" notification, in a friendly blue color.
It's painfully obvious Microsoft is looking out for its own interests, and those of its corporate partners, instead of their users, when they subjectively determine what is malware.
[1] https://baronhk.wordpress.com/2021/09/13/microsoft-defender-...
[2] https://www.theregister.com/2020/06/05/windows_10_microsoft_...
0: https://i.judge.sh/illegal/Tempest/InstalledDriversList_HbYV...
1: https://i.judge.sh/fickle/Aloe/InstalledDriversList_7NIthyI6...