Whenever telegram-desktop is playing sound (e.g. audio file, voice message) and I try to redirect it to
a non-default audio device using pavucontrol, a default device stays selected.

Doesn't seem to be a problem with pulseaudio / pavucontrol, as selection works for other applications
(tested with Firefox and Deadbeef).

Might be related with #905822 but not sure.
Using pulseaudio 12.2-2 and pavucontrol 3.0-4

Reproduction:
1. have a system with more than one audio device for playback (e.g. built-in soundcard and a USB soundcard)
2. open pavucontrol and go to the playback tab
3. open telegram and make it play sound (e.g. play an audio file or voice message)
4. try to change the output device for telegram

expected: a different device is chosen and audio is played using it
observed: no change, telegram still uses the default device