I run LO on KDE on Ubuntu 24.04 at work. The menus were hiding lots of stuff with a weird gray on slightly less gray color scheme. It felt like they hate users, but then it hit me: The Gnome and KDE styling are somehow infighting. A 5 minute journey in the LO settings menu turned it from a hunt-the-label game into not-productivity-damaging good enough UI.

I have copied over the config for a few Ubuntu versions so I assumed some setting got wonky, but reading this thread, I wonder who else has to suffer this.