Hi!
In a help I read this:
Make Direct Offline Processing Permanent
Allows you to flatten all edits and to apply all processing and effects permanently to each clip in the Pool.
But actually, even if this check box is unchecked, all DOP edits are flattened in the backed up project.
I hope that DOP edits files in Edits folder aren’t in category “Unused” and aren’t under Audio Files that can be minimized.