It’s only currently planned for PC, with no controller or console plans yet — and Mountaintop won’t necessarily allow Steam Deck to join. “Steam Deck is a concern as a cheating vector, and I think our anti-cheat systems may block it right now,” Mountaintop CEO and cofounder Nate Mitchell tells me.
It’s because of corporate greed. Anticheat is basically totally achievable on the server side, but that requires much more computing power. The idea of client side anticheat is to reduce infrastructure cost.
Eh, it’s also much easier to slap a client-side detector on because you can use generic detection methods. When you’re doing it server-side, you have to rely a lot on statistical analysis and it’s all game specific.
In the end you can, of course, reduce it all to not shelling out money, but there is some nuance too.