This is so funny because rust has one of the worst cheating situations and majority of their players are windows users, and theres lots of games that have anticheat that allows linux and have notably less significant cheating problems like marvel rivals. in reality rust doesn't take cheating very seriously because if they did they would have more server side software that detects illegitimate behaviour like tons of other games do successfully...... even most popular Minecraft servers have better functioning anti cheat that is completely server side than rust has while getting kernel access to your pc. its pathetic and lazy development tbh and this entire post from them reads like such extreme cope....
Because they've been forced to implement server-side anti-cheat because they can't implement it into the game because they don't control the game and mojang don't seem interested in adding much in the way of anti-cheat to Minecraft.
These other companies actually control the games they're running the servers for, so they can go the simple route and put kernel level anti-cheat in the game, and then call it a day. Corporations will always take the easy cheap option, even if it's not very good.