OneDrive “Share” window stuck loading from File Explorer (works on web)

Continue using OneDrive on the web as the workaround, then have IT check Task Manager to confirm that OneDrive.exe and Explorer.exe are not running elevated, since elevated OneDrive integration is unsupported.

 Because several users are affected and the client, WebView2, credentials, and network have already been eliminated, check Microsoft 365 Service health and open a support request with the affected Windows builds, OneDrive versions, timestamps, and diagnostic logs. The current public OneDrive issues page does not list this specific File Explorer Share spinner as a known issue.