I’d asked a similar question in this thread RESOLVED: Data migration from OSMC/Vero 4k+ to Windows Kodi - Help and Support - OSMC Forums and the final resolution which worked was using the official Backup addon. However, since it there were different skins involved, I didnt select the backup option to migrate GUI settings. I also used Trakt to synch libraries across both devices, and did not migrate databases.
Worked like a charm. Hope this helps.