Anecdotally, almost every startup/VC/etc. in my circle has been using Zoom for the past 2+ years (Paris and London). So there was probably a seed ready to take root not far from you. I've had the occasional Hangouts, and the rare WebEx or Teams meeting with some larger orgs, but that's it. I haven't even logged in to Skype in that time period.
Even my parents have been able to use zoom seamlessly from their phones. I think it helps that you don't even have to login or have an account if it's always someone else creating the meetings.
Zoom was not the first mover in chat/video apps, far from it. But over the past few years, it has overtaken all the other, older ones for the early adopters in the technology adoption cycle, at least in my anecdotal experience. The last few weeks have accelerated the mass adoption that could have taken much longer or never happened to an instant.