Hi,
Bought a DJI Action 5 Pro and loving it, been using it for running and youtube.
One problem I ran into was that the DJI Mimo App was holding on to storage even after you delete videos.

The only two solutions I saw was to go into app setting and delete cache/user data or uninstall.
Both of these result in you have to relink your garmin and set everything up all over.

For android, there is a folder that has segementation data that you can only delete directly through your phone.
I am guessing that due to some sort of file management DJI Mimo App has to break the videos up into segments to process them
and keeps that data internal and doesnt clean it which is what hogs space.


Basically you can see that under this path

PC\Pixel 7\Internal shared storage\Android\data\dji.mimo\files\segmentedit

4.82GB is being held and wont be released unless you explicitly delete it yourself.

Hopefully this is helpful, spent a bit of time figuring it out, so thought Id share it.

You may want to try deleting the cache under settings...