Qt5 app not working with global menu?

After recently updating to Plasma 6, I’ve noticed that some qt5 app no longer work with the global menu plasmoid. I am using Wayland session. The main app giving me issues is Quassel IRC client. There’s also some UI bugs that are apparent on Plasma 6, but the main issue is there not being any kind of menu, so I cannot access the settings for the program at all.

Unfortunately, it seems as though development has pretty much stopped with this app, so hopefully there’s something that can be done on my end to make it work…

Any advice? I am running Manjaro… are there any packages that may be missing?


I am seeing the same problem with Valentina Studio for Linux (https://www.valentina-db.com): no menu at all.
Though I don’t know if Valentina Studio is a QT5 application, but I don’t think the problem is limited and/or related to QT5.
It would be nice if Global Menu had an exclusion list, this way we could at least work around the problem.

Work arounds encourage things to never be fixed. It should just be fixed.


EndeavourOS, Wayland session. I’m seeing this issue with Firefox, Audacity, LMMS, GIMP, and Xed.