Umm, yes, you're right. Do you know if gst-inspect-1.0 | grep lv2 should give me lv2 plug-ins I have installed? Because it shows nothing.

Since the 4.5 update Pulseeffects gets its equalizer from calf, so it's grayed out. Right now, only feature available is autogain, so I consider Pulseeffects broken at this point. Should this thread be continued or new one made?

libreoffice-math was added to the newest ISO (according to blog post) so I call it resolved

Is that even a Solus issue? It looks to me like it's up to GOG to make games work on OSes with new(er) libraries. Maybe it would be enough to put the solution in help center, under gaming?

I don't know if it's anyhow useful but qDebug() writes to journalctl. Should it?

I managed to solve the issue. I should've spent more time trying to fix it before posting here, but

dconf reset -f /com/github/wwmm/pulseeffects/

solves the problem.

Unfortunately, the bug still exists

The problem still exist in nvidia beta driver

I didn't want to sound demanding, sorry for that, just wanted to push this task somewhere.

I agree with @selfus

gtk3 look exactly the same. Actually, it looks the same as Flatpak release so maybe that's why it works.

It solves the problem!
But with this theme Octave looks pretty ugly

Unfortunately, it doesn't help.

simplest way:

What desktop are you using?

Git builds for me and the update bug is fixed.

So, it's already updated. Should this task be closed?

shit, I missclicked smth on workboard (I don't even know if I should be able to go there). Don't really know how to repair it. Sorry :(((