Hello, I've played the web version in the past, and then the Linux version downloaded from itch. It works fine. About 15 minutes ago, I downloaded the demo on Steam, but it doesn't work on my Linux system. Normally, I don't have any compatibility issues with Steam games thanks to Proton, which is directly integrated by Steam for playing on Linux. I don't know what happened.
That's all. I wish you a very good Neo Fest.