Yes, I do the backups on Dropbox.
I have read the articles, and the sections linked on it.
Since the Roon Core is preinstalled on sonictransporter, I would skip that step, and point a controller (my iPad ) to the new Core on sonictransporter.
I currently have my music files on the PC current Roon Core is located. Once sonictransporter comes, that PC will no longer be in use for Roon, so I will have to change my watched forlder to the NAS I have that I have a copy of all my music library. I have a third backup of my music library on a USB drive as well.
I realize that the backup of Roon database (as discussed her and KB linked) is separate and nothing to do with my music files, but I am a bit confused how they will both be tied in together on the new Core on sonictransporter