A Microsoft file hosting and synchronization service.
Hello,
Microsoft no longer supports OneDrive on macOS Catalina (10.15.7).
The current system requirements state that OneDrive requires macOS 13.0 or later, so the app cannot be installed on Catalina.
Microsoft supports only the latest three major macOS versions.
When a new macOS version is released, support for the oldest of the previous three versions is dropped.
Catalina is now outside this support window.