I'm much more concerned with a new hire, especially revOps, that shows up and their day 1 recommendation is to change productivity tooling for the whole company. Typically these big changes on day one kinda folks are tone def to the organization and culture, and don't always survive the backlash / fallout of their changes.

Encourage this person to start a little smaller, build a track record of impactful wins and use that track record to make bigger and bigger changes.

To answer your stack questions, people are successful with all sorts of tools - one stack isn't better or worse.