Flatpak version doesn't recognize printer
If musescore is installed via flatpak the printers aren't visible or accessible. The only printer is "Print to File (PDF)".
I've seen that this issue persists since v.2.1 (https://musescore.org/en/node/270555).
It doesn't seem to be a problem of flatpak itself, because LibreOffice is able to print in the flatpak version.
I'm on debian Buster x64 with KDE.