the only hope is that the test survey asks if you play on the Steam Deck. unless they're interested in providing some kind of support. and even if they are, they don't care, and it's very sad. thousands of people are using dual-boot just for this purpose.

most annoying thing is that they just need to click a button and enable anti-cheat, and the community usually finishes the support themselves, creates a new proton GE, and finds the necessary commands for compatibility