personal-files depends on what particular files the snap is requesting access to - are they reasonable given the use-case of the snap? If you could please provide details then I can advise 
There is no approval needed for home or removable-media - both of these are allowed for any snaps (and the home interface auto-connects on regular Linux systems) - if you need auto-connect for removable-media then you will need to file a specific request for this as per Process for aliases, auto-connections and tracks