We shipped support for installing the OneDrive app on an SD card, but any files taken offline still go to internal storage. We do have plan to enable offline files to be stored on SD card. I’ll update status as we get further along.Javi Tzso commented
FYI: I am completely on Samsung Dex now, so Android is my daily driver.Javi Tzso supported this idea ·Javi Tzso commented
Installed OneDrive v5.9 from APKMirror on Samsung S9+. Moves the app to SD Card, but offline files are still stored internally. I hope the files will be accessible through "My Files" and that Samsung Music will be able to see them. If not, I am done with MSFT and cancelling my 365 sub.