I can't really afford a new console (and I TV...and a bigger place for the TV) right now. However, the Steam version should work for sure, having a native Linux version and full controller support. I have written Atari about it.
if you go through the discord and reach out to Davpa, you'll get a quicker and direct reply. He's the one who handles all the devs department. A great guy too! I wish you all the best and I look forward to the next game!