Running "cvs up -D2023-08-11" in /pkgsrc/x11/lxqt-panel and rebuilding
lxqt-panel-1.3.0nb3.tgz gives a working panel back on netbsd-10,
everything else otherwise the latest pkgsrc tree
I have a jenga-like stack of non-NetBSD stuff to get caught up on, but
if nobody has had a chance to look at this by tomorrow I should be
able to take a pass..
The alternate workaround is to enable the pulseaudio option for the
lxqt-panel package. The volume plugin then starts on recent NetBSD;
I just confirmed that's the case with 10.99.9. (Now, I'm not offering
an opinion on what the best choice is here feature-wise, only
pointing out that it doesn't kill the panel.)