Possibly to migrate Nextcloud on raspbian to NextcloudPi

Hello - i have had nextcloud since it was owncloud, and upgrade upgraded, but there is quite a lot of maintenance to keep everything in the “green”
Hence the question if it is “easy” to migrate from plain nextcloud 15.0.2 on raspbian stretch with nginx to NextcloudPi?
all my nextcloud/data are on a CIFS mount so in terms of “logistics” there "should be nothing to it. It is rather to avoid some bad surprise about the database not being compatible or something like that.