Can't Open After Download
I downloaded successfully but when I went to open I got the warning - "musescore3" can't be opened because Apple can't check it for malicious software.
This software needs to be updated. Contact the developer for more information.
"MuseScore3 was blocked from use because it is not from an identified developer.
MacBook Pro
macOSCatalina
Comments
#296799: MuseScore 3.3 can't be opened in macOS 10.15 Catalina?
Newer version of this issue tracked in #300830: MuseScore 3.4.2 on macOS 10.15 (Catalina) "can't be opened because Apple cannot check it for malicious software"
Please check if the workaround works for you and comment there.