i can sync the internal folder, but can’t access sync to external sdcard folder.
i think android 8 and above uses emulated ext sdcard condition for privacy reason. hence no longer direct accessible. i tried to use droidvim to access and store external sdcard… but the address shown on droidvim address is very weird and long… in "emulated/0/… long long address…/ "
I think kde connect runs on your computer? So you just view its notifications remotely and it has no access to your phone. Syncthing is a native and cannot do what java apps can do atm.