I'm not sure if you programmed some work around to keep the GSX menu open or to overwrite some UI element in MSFS.
And it's precisely why I AM sure we haven't touched ANY stick MSFS file that I said it's not happening.
But GSX is completely breaking the main menu and toolbar in VR. When this occurs it also causes the sim to hang when exiting your flight.
GSX doesn't break anything. Maybe you have installed *another* add-on that DO overwrite the stock UI files from MSFS ?
So you're in VR with invisible menus. So exit VR to get the menus back and exit the flight back to main menu and it hangs going back. Infinite load screen. You have to force close MSFS.
I tested it today again, no issues whatsoever. Pressing TAB shows or hide the main toolbar, as usual, and everything works normally. Please provide AGAIN precise, exact, reproduction steps, so I'll it try it again, maybe you are doing something I'm not.