Thanks to @efornara (for creating FRT - A Godot "platform" targeting single board computers) you can now play 2D games made with the Godot Engine on the Raspberry Pi (and other single-board computers) ...
Requires Godot 3.4 or later. OpenXR support in Godot 4 is now available in the core without the need of a plugin. Only supports Windows (SteamVR, Oculus runtime ...