A lot of people who are not web devs use it, that's what I see. I even saw some mainframe developers use npx to call some tool on some data dump.

Also, this is a web project anyway. Google Workspace is web based, so while there is a good chance that the users aren't web developers, it's a better chance that they have npm than anything else.

In the case that they don't, releases can be downloaded directly too: https://github.com/googleworkspace/cli/releases