All the input verification and processing of player locations is done on the server (at least in any respectable game), I can smell the fact that you haven't touched a single line of multiplayer code in your life from here

Those checks can be buggy ofc or do not cover all possible exploitable behaviors. But when there are implemented correctly you can not circumvent them. Similar to a Login form, bugs excist.

A youtuber named CodeOverflow made two great series about game exploitation.

EDIT: things like physical hardware hacks are also near impossible to detect reliably except for stuff like blatant recoil hacks

Not talking about that. And Client side anti cheat does also not help here.

Lol

It STILL is impossible to verify everything server side unless you have a crazy powerful adaptive AI engine the likes of which still don't exist today and you need to scale that for hundreds of thousands of concurrent players.

Serverside anti-cheat requires AI

You need to go out in the world (where the trees don't have pixels) and learn about this stuff if you want to be in this field / pretend to argue about it. Instead you've conflated the facts that other people are telling you (this is a hard problem that takes effort) with the corpo propaganda (It's expensive so It's impossible)

Also: Your llama-based waifu is not real. Good luck with your chat bot addiction.