Comment 45 for bug 1620771

OK!
So this I'm facing the same issue in Ubuntu 20.04.
I've upgraded from 18.04.
Snap was working fine previously but post update it started giving the same permission denied error.
I tried various fixes given in the whole thread but nothing seems to be working.
I also tried to reinstall snap, snapdm gnome-software packages using apt but after that as well its giving the same error.
This is so sad, Ubuntu was about have a great app store but in a normal LTS upgrade it doesn't work properly. :(
If anyone can suggest me some help, it'd be appriciated.