Adding Steam Deck support would be a huge win for the game. The Steam Deck community is growing fast, and making the game playable there would definitely attract more players and increase the player base.
A lot of people prefer the convenience of handheld gaming, and having to install Windows just to bypass the anti-cheat is a pretty big barrier. If the anti-cheat could be made compatible with Linux/Proton, it would open the door for many Steam Deck users to jump in.
Really hoping the developers consider this. It would make the game much more accessible.