Asking this once is sufficient, no point in sending this as a support request and in the forum...
Unless your Android device is rooted, Android generally doesn't let you access the file storage of a different app.
The git repo that represents the local cache of cloud storage on an Android device is located at
QStandardPaths::AppDataLocation/cloudstorage/<repo/branch hash>
Depending on the version of Android you are using, this should translate into something like
/Android/data/org.subsurfacedivelog.mobile/files/cloudstorage
but as I said, normally you won't be able to access this as part of the sandboxing protections on Android.
/D