Best practice for container storage

[fmow]

Am I right in my understanding that currently the best practice would be to  keep within a separate folder either the standard one or a user one instead of incorporating them into the database? That would make the database file smaller and less prone to corruption, as well as more manageable. My understanding also is that at the moment you can only keep such data in the same volume as the server is in, but correct me if I'm wrong.