Igor, I'm responding as someone also affected by this issue. Using the command you gave in comment #25 I saw that both pulseaudio and pipewire were using the same audio device(s).
I used the command 'sudo systemctl disable --global pipewire' to disable pipewire and deleted the ~/.config/pulse/ directory. After I rebooted several times I can see that the volume is no longer set to maximum after rebooting or logging out and back in.
Igor, I'm responding as someone also affected by this issue. Using the command you gave in comment #25 I saw that both pulseaudio and pipewire were using the same audio device(s).
I used the command 'sudo systemctl disable --global pipewire' to disable pipewire and deleted the ~/.config/pulse/ directory. After I rebooted several times I can see that the volume is no longer set to maximum after rebooting or logging out and back in.
This workaround is documented at https:/ /bugs.launchpad .net/ubuntu/ +source/ pipewire/ +bug/1897965/ comments/ 23