LLMs are not Large Medical Expert Systems. They are Large Language Models, and are evaluated on how convincing their output is, instead of how accurate or useful it is.
The way I see there was a 15 hour long free game that came with my purchase of Monster Hunter. It wasn't much good but I'm glad to play Monster Hunter after that.
Performance-wise, the game is bottlenecked not just by CPU and GPU but also by asset streaming. Put it on your fastest NVME drive and make sure you have enough GPU headroom for DirectStorage to do its work.
Some anti cheat work better than others, and it depends on how much you'd like to play the game that needs it. Plenty of games without.
EAC does not hide its process and you can see it running. If it's not, perhaps it has left files behind, but that's a Windows issue more than EAC's.