[unwind]

For those that don't know (like me, three minutes ago) gamescope [1] is a Wayland compositor custom-written for games (and, I believe, what the Steam Deck uses). it's open source, and under the "BSD 2-clause" license.

[1]: https://github.com/Plagman/gamescope

[sosodev]

Yes, it’s what the steam deck uses to run every game. :)