Mumble Push-to-Talk on GNOME

I have two options:

1. Upgrade Mumble to 1.4.
2. Use X11.

https://wiki.archlinux.org/title/Mumble#Push-to-talk_on_Wayland

Problems with upgrading Mumble to 1.4:

* The version of Mumble from Mumble project itself is 1.5, which
requires a uninstall of Mumble before installing the upgraded version.
* There is no 1.4 in Trisquel.

Problems with using X11:

* GNOME IDE (Flatpak) won't run.

caleb@hermes:~$ flatpak run org.gnome.Builder

(gnome-builder:2): Gdk-WARNING **: 11:48:27.841: The program
'gnome-builder' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadRegion (invalid Region parameter)'.
(Details: serial 736 error_code 140 request_code 138 (XFIXES)
minor_code 11)
(Note to programmers: normally, X errors are reported asynchronously;
that is, you will receive the error a while after causing it.
To debug your program, run it with the GDK_SYNCHRONIZE environment
variable to change this behavior. You can then get a meaningful
backtrace from your debugger if you break on the gdk_x_error()
function.)
caleb@hermes:~$

--
Caleb Herbert
https://calebh.top/