Download Edge Favourites Backup.zip and unzip the folder into your OneDrive.
ie OneDrive\Scripts\Edge Favourites Backup
It contains the following Folders\Files:
Edge Favourites Backup.bat
Double click on the ‘Edge Favourites Backup.bat’ this will compress the 2 folders referenced in Backup/Restore Microsoft Edge Favourites Issue into a file in the Backups folder, the name is based on:
It may look different depending on regional settings.