It's funny that game makers make a fuss about anti-cheat not working on Linux but then publish Switch versions of their games. That platform has almost zero security and is commonly emulated with cheats even in multiplayer these days.
There is no Switch emulator that can play online on official servers.
The only way you can cheat online is by hacking a real console, but the percentage of people who do it is quite small.
Although who knows, they might be outright lying about that just to scare cheaters, but I tend to default to assuming what they're saying is more or less true.
To answer all those questions you either have to render the entire game on the server for every player (not possible) or make the checks conservative enough that cheaters still get a significant advantage.
I know, not the same, but IMHO the future of anticheat. We just need faster fiber networks.
I live a bit remote on an island group, and even though I have a 500Mbit Fiber, my latency to the next GeforceNOW datacenter is 60-70ms (which is my latency to most continental datacenters, so not NVidias fault). That makes it unplayable for i.e. Battlefield 6 (I tried, believe me), but I have been playing Fortnite (which is less aim sensitive) for 100+ hours with that.
Any Switch game using an anti-cheat solution that can't trivially detect that it's being emulated is... not using a very good anti-cheat solution.
fornite???? its not gonna be main playerbase
I'm sure there are others, but those are the 2 I play
Some actions which breach ToS may be illegal, but that has nothing to do with them being outlined in a ToS.