MythTV worked under F30/Wayland, but is broken under F31 Beta/Wayland.  It works under F31 Beta/Xorg, however.  Here is the relevant error message when trying to launch "mythfrontend" under Wayland:

2019-09-21 09:25:30.134866 I  housekeeper.cpp:722:Start  Starting HouseKeeper.
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()

Thank you,

--James