It appears to use glfw, so there's this: https://www.glfw.org/docs/3.3/window_guide.html#window_full_screen https://www.glfw.org/docs/3.3/window_guide.html#wind

It appears to use glfw, so there's this: https://www.glfw.org/docs/3.3/window_guide.html#window_full_screen https://www.glfw.org/docs/3.3/window_guide.html#window_full_... But it would still be x11 or wayland underneath...it doesn't support direct Linux framebuffers.