Not sure when, could be related to the paint fixes in #2481, #2373, #2499.
The windows are back to being undecorated with
GDK_BACKEND=wayland, we get pointer events but with the wrong position... and no wheel events.
GDK_BACKEND=x11 we don't get any pointer events at all on this laptop.. no clicks, wheel or motion! (but the same version works OK on a desktop also running F31, but without wayland because of the nvidia driver)
Switching the desktop environment to a native X11 session makes no difference.
Delaying, we continue to set
GDK_BACKEND=x11 as default for now.
this ticket has been moved to: https://github.com/Xpra-org/xpra/issues/2511