A very basic rule in developing any app that has a server and a client is that you never trust the client. Never. What do game devs do? They trust the client and try to make it trustable. That will never work. The anti cheat should be on the server : a player flying would be very easy to detect. Don’t send the position of every players to every players.

I thought it was already supposed to be in kernel 6.10? What happened then? https://www.phoronix.com/news/Linux-6.10-Merging-NTSYNC

It is really great, even with a NVIDIA. Never understood the complaints about arch, but maybe I have Endeavour to thank for that