When using WMR as an OpenXR runtime, the brush menu moves when not pressing any buttons. In right handed mode, it automatically moves to the front, while in left handed mode it moves to the back. It only moves when the pointer is pointing at the brush window. This fixes itself when using SteamVR as the default OpenXR runtime, but this comes with more performance overhead.
When using WMR as an OpenXR runtime, the brush menu moves when not pressing any buttons. In right handed mode, it automatically moves to the front, while in left handed mode it moves to the back. It only moves when the pointer is pointing at the brush window. This fixes itself when using SteamVR as the default OpenXR runtime, but this comes with more performance overhead.