Props to her, she asked about the security and privacy of the browser and I played it off with some fanboy propaganda. Lesson learned on that one. If I only care about the vertical tabs, workspaces, and a (decent) mobile app are there any good equivalents right now?
I use Firefox mostly because of Sideberry (which does vertical tree-style tabs) which also integrates with "containers", so you can have something similar to workspaces but more isolation. Otherwise there is also "profiles" that probably offer even more isolation between the different profiles.
It works, it's boring, and it doesn't try to shove gimmicky features in my face.
But experience is probably different.