On my Fedora 31 system I can perform snap download successfully:
[zyga@fedora tmp]$ snap download hello-world Fetching snap "hello-world" Fetching assertions for "hello-world" Install the snap with: snap ack hello-world_29.assert snap install hello-world_29.snap
It also shows how to use the files that were created.
On my Fedora 31 system I can perform snap download successfully:
[zyga@fedora tmp]$ snap download hello-world 29.assert
Fetching snap "hello-world"
Fetching assertions for "hello-world"
Install the snap with:
snap ack hello-world_
snap install hello-world_29.snap
It also shows how to use the files that were created.