With multiple monitors, the initial window size is very wide - wider than a single monitor.
Probably the initial width should be the size of the display that the window is on rather than the virtual desktop.
Not a huge issue after the initial use of course.
Comments
Which OS, which version of MuseScore, if 2.1, try setting DPI on commandline, see https://musescore.org/en/handbook/command-line-options
confirmed on win7 pro, MS2.1, Windows running on 3 monitors configured as "Extended desktop" makes the initial window size span all three monitors.
I can't confirm that, I'm running a dual screen setup since ages, Windows 7 and 10, never a problem
Hmm.. I'll verify at my workplace on monday on my own system; but I saw it just last Friday on the laptop of my coworker. He never had MuseScore installed before and was using the Portable version of 2.1