I use Linux almost exclusively. I want to see more Linux games. But my experience with Linux games, on itch and on GOG, is that more often than not they just don't work. Building and packaging a Linux game so that it works across different versions of different distributions is apparently beyond the abilities of a lot of developers. As such, I prefer it if Linux games come with a Windows version so that I can fall back to running the games under Wine if I can't get the Linux version to run.
Viewing post in Any Linux gamers out there?
AppImage is useful for packaging, but it doesn't prevent broken builds by itself. I've seen plenty of Linux games without AppImage that work fine, and I think I've seen at least some AppImage games that don't work (although AppImage is pretty rare). I do use AppImage for my own games, but more importantly, I use static linking where I can and I redistribute .so files and use custom rpaths where I am forced to use dynamic linking.