I just discovered that chromium is released as a snap package in my Ubuntu 20.04, and I'd like to know what else are like this. So,
How can I tell which packages come from snap? I.e., I want to have a list of packages that on trying to install using APT actually installs Snaps.
The transition of Chromium browser to a snap package was planned since 19.10 and was announced on Snapcraft Blog. As of now I'm not aware of any other package with which with such transition happened.
You can always refer to package details on Ubuntu Packages or the output of
apt show package
and check if it's dummy package and depends on snap. For example, in case of Chromium browser, package details mentions:The output of
apt show
also mentions that it is a dummy package and can be safely removed.