You can overlay it in OBS of course. It's not like VMagicMirror where you can see the avatar on your desktop.
Ah i see, i wanted it to be visible on the desktop just like TIFA but where one could have it overlay over the game but not unlock the mouse capture a bunch of games do, so one can react to things better then just sounds or redeem popups, cause being able to react to a ball hitting your face by glaring in the direction it came from might be a interesting thing to do. Specially for those with only one monitor, and not wanting to enter windowed mode on games.