Most Linux users wouldn't want anti-cheat because for it to be effective it would need root access. Cheaters can just use a custom kernel and/or modules to bypass userland anti-cheat implementations. Linux users don't play the games with these sorts of anti-cheat measures because they aren't going to give those games root. And most of those games flat out flag Linux as a cheater OS anyway and refuse to work.

Some Linux users do cheat in such a way but the large majority don't cheat. They just don't want to run Windows or Mac. At this point, most Linux users have issues with the telemetry in Windows and Mac so they run Linux. And the number of Linux users playing this game is growing at a decent pace. It's probably not a large enough user base to be a major loss if this game got anti-cheat but that could change as players are forced to move from Windows 10 to Windows 11.

For the games with very effective anti-cheat, running Windows in a virtual machine isn't working anymore either. The anti-cheat software can detect a virtual machine running on a Linux host and block the player. That's because the Linux host can directly modify the running guest OS.

it's just one of those things. Linux FFXIV players know cheaters are fond of Linux but also know that anti-cheat software would have to get root, and well, the answer is no. No root. Linux gamers understand there will be some cheating if userland software is restricted to userland. From what I've seen from that crowd, the consensus is that they'll just put up with cheating in FFXIV and that it isn't a big enough deal to take any action. They're mostly just happy that FFXIV runs so well in WINE these days.