I have upgraded to 8.0.1 via Docker Compose. Everything seems to work fine but I miss the new features. It feels like the web gui is somehow stuck in the old version. Is there a cache somewhere or what else can cause this?
E.g on the About instance I still see the old layout but the version is correct.

In the settings I don't have the Editor Theme section, and the layout also differs from screenshots I have seen on 8.0.x.
I have uninstalled themes and search for info but cannot find anything. Any ideas?