WetGeek Easy-peazey. But either way, the learning is minimal. The biggest part is learning how and when Zoom does things the way it does things. Meeting placement, guest placement in relation to what is open, for instance. Seemingly arbitrary idiosyncrasies.
Joining and Hosting and Scheduling are three different functions.
Some of the verbiage is anti-intuitive. "Join without video?" "Host without audio?" You have to press them. They mean 'join and enable this stuff whenever you want.'
Doubt there's a difference in the Flat or Snap.
It's always a consistent picture quality, which is good. And the chat feature is way cool for shy people. My favorite is being able to share whatever is open on your desktop: pictures, document, game, video. Or your whole desktop. And your viewer can do the same for you.
Unlike Meets, it's very interactive by design.
Lastly, you will have to be in the browser on occasion at zoom.us to configure your master settings and tweak user account. Other than that, no browser.
Dig it.