Setup assistant window cut off
I'm reporting this issue for the 3.3 release candidate but I've observed it in previous versions. macOS 10.11.6 on MacBook Pro with a 1280x800 screen resolution. Also, MuseScore starts with the German localisation but I don't know whether that makes a difference.
When I start MuseScore for the first time or after having reset preferences to default, the setup assistant window is too large to fit the screen's width. This results in not being able to the "Continue" button without resizing the window or moving it further left.
I think a fix for this issue should be prioritised as any new user of MuseScore who runs into it will get a poor first impression of the programme.