Doom Eternal - Everyones vs Bethesda

That's Denuvo Anti-Tamper_, which is designed to prevent piracy. Denuvo Anti-_Cheat is a new thing. It has kernel-level access to your computer, which is the main reason it's causing such a fuss right now. That level of access is completely unnecessary and outright dangerous. Worst of all, you can't start the game without it installed, even just for singleplayer.