[okwhateverdude]

> The server is the authoritative source. It is not supposed to rely on the client for authoritative game state, and if it does, it is fundamentally and terribly flawed.

Indeed. Likely the client is responsible for certain state things and/or implicitly trusted with state updates. How this happens is that most of your game devs are not paid enough or given enough time to do it right. Engines are selected (generally not built) for their ability to get shit to market fast and multiplayer is an after thought, hacked on. And management just shrugs and says we'll force players to run anti-cheat ring0 nonsense.