I forget the exact context but I recall an Ubuntu dev stating they have more users of the Firefox snap alone than trendy distros have entire users.
I think it’s worth keeping that in mind with all the hate Ubuntu gets. Most users are just silently getting their work done on an LTS they update every two years.
They have also had more malware on the snap store than all other distros have had in their official repos combined.
Well, I don't know which trendy distro the dev is referring, but Debian is complete opposite of Trendy. It's a bedrock distro silently running almost everywhere in some form or shape.
Most of the Linux-based (enterprise and/or embedded) appliances are built upon Debian, for example.
P.S.: The total number of Debian installations and their derivatives are unknown BTW. Debian installations and infra do not collect such information. You can install "popularity-contest", but the question defaults to "no" during installation, so most people do not send in package selection lists, unlike Canonical's tracking of snap installations.