If I browse to ~/snap all of the directories contained inside are empty. Also, if I ls -a in terminal I get,
intellij-idea-community/current $ sudo ls -la
total 8
But no files?
SnapOverflow
The snap folder under your home directory is not where snaps are installed. It's simply the confined path tree for where those apps are allowed to read/write user data from (barring any exceptions granted by the user).
The actual snaps are in a different system-wide location, and mounted on yet another location for use.
Snap files are in
/var/lib/snapd/snap/