I gueeeess a stream deck would help with that, but yeah, I get the whole thing with the ui appearing during stream if you put the mouse over the window. Also, I had a few minor problems with hotkeys too, but nothing too bad considering I'm doing what I can in Linux, and we know how bad it is to do game-related stuff in linux without a partner pc to help with the streaming. The program lockups are a pain.
Again, nothing happening with VeTu, it's still a beta that could and hopefully will improve.