Since 2.35.1, after seeking a YouTube video, if the sound is not muted after the seek (see bug #225857) then it might be "choppy" and clearly broken. Other times, it works fine. Since this occurs only sporadically after seeks, it seems difficult to demonstrate with a GStreamer debug log. I can try if requested.
Duplicate of https://bugs.webkit.org/show_bug.cgi?id=233861 ?
I don't think so, but I also have not seen this bug in a while, so I'm pretty sure it's fixed. Maybe something was wrong in pipewire.