Maybe it's time to just give up on PC gaming and use dedicated game consoles instead, which are locked down by design? The only real alternative seems to be running a cryptographically-verified known-good OS signed by one of the big three OS companies, which is also locked down enough such that cheating becomes impossible, or installing what is essentially kernel-level malware, just to play the latest games.
Modern games all have 10GiB+ updated constantly that you're not disassembling.
What's the difference?
I don't think this is possible on Windows without administrator. It certainly shouldn't be, if it is.
But anyway, the fact that any userspace software can read all your personal files without any user confirmation as soon as you double-click on it is not a good thing, and as I said, all desktop operating systems are attempting to address this problem in some way, including Windows. I imagine the normalization of rootkit-style anticheat has become a pain point for the security team at Microsoft.
But I was asking why people believe that they're safe from userspace software they install as that can read all the files and memory of processes of your user anyway.
You can monitor every userspace software. You can't monitor drivers.
Most people would say there is a clear difference in security there.