I am using on Mac Seadrive 2 and from what I noticed, even though my files are locally cached (and showed as “Finished”), their parents are labeled as “partial synced”. Thus, I am not able to know whether I have all recursive contents available offline, without manually checking all subfolders for “finished” state.
Maintaining this information with SeaDrive 2 is complex so we don’t implement it. SeaDrive 3 works the way you want.