. If you just want the pipewire dep without interfering with pulseaudio you should install pipewire-media-session instead which isn't as aggressive in claiming audio devices as wireplumber is.
Thank you for your help. Indeed, it was the problem with wireplumber.
I am not ready yet to switch completely for pipewire, so I removed all dependencies with wireplumber and the one itself.
Installing dependencies connected to pipewire-media-session instead of wireplumber solved the problem with lagging and no sound.
During installation of latest deepin-kwin I was asked for dependencies, i.a. wireplumber.
It was strange for me that window-decorator asked about multimedia framework...
Anyway, after installation, my external DAC is visible in system but I can hear no sound.
Apart from that, in firefox - Youtube and Twitch movies started to look like lagging thing (approx. 0,5fps?) with no sound also.
I am not sure if all of these are the symptoms of switching to pipewire or there is some other problem.
Where to start diagnose?
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