Quick note on the Proton Meet pricing, since I was initially confused.
Proton Meet is Proton's new video meeting product. If you're on the Proton Unlimited bundle, Meet is included, but with a cap: 60 minutes max per meeting. You can run unlimited meetings per day, just none longer than an hour each.
The standalone paid Meet product removes that cap (unlimited meeting length) and adds extra features on top.
So bundle members aren't locked out, they just hit the 60-minute ceiling per session. If you regularly run longer meetings, the standalone tier is what you'd want.
I put together a quick infographic on the top three features of the paid tier below.