Seems cool, but it’s unfortunate that the project doesn’t seem healthy. Last commit was 5 months ago. Furthermore, its maintainer has even explicitly mentioned that the future of its project is uncertain. At least, we gotta give them credits for being transparent.

Author’s disclaimer:

“Flatpak is NOT a distro, but that’s what Steam reports when it’s running on Flatpak, and Flatpak being distro independent we report it as a separate environment, if that makes sense. Feel free to ignore it if you wish.”