Migrating sound libraries

I want to restructure the sound libraries I have for MuseScore 4, mainly because space on some of my external SSDs is running out.
I have been able to copy the files from several onto a much larger SSD and in some cases I may have to re-register the files in their new locations with the provider [e.g. Spitfire, for some VSTs].
Is there anything special which must be done for Muse Sounds, or the libraries downloaded via Muse Hub?
It looks as though there is a path in the Preferences file which can be used to point to external VSTs - maybe that should just be updated to reflect the new locations - but does anything else have to be changed? New permissions? etc.....