Line breaks in intrument name make status bar's height change
When the instrument's full name contains a line break (for example in the Barbershop Quartet default template I often use), each time a element on that staff is selected (rest, note, etc.), the height of the status bar changes.
When the element is deselected, the height of the status bar goes back to normal (1 line).
This is sometimes disturbing to have the status bar and all bottom panels "move" while editing the score.
I would recommend stripping line breaks (or replacing them with a space) in the instrument names in the status bar to keep it 1-line-high.
OS: Debian GNU/Linux 10 (buster), Arch.: x86_64, MuseScore version (64-bit): 188.8.131.526888218, revision: 6b901e7