I had this same issue on my first attempt to install 21.04 where I couldn't install any snaps or open Ubuntu Software. I found that if i reinstalled and did not use ZFS this did not happen. So I think this is a bug just with the ZFS install version.
I had this same issue on my first attempt to install 21.04 where I couldn't install any snaps or open Ubuntu Software. I found that if i reinstalled and did not use ZFS this did not happen. So I think this is a bug just with the ZFS install version.