[codingdave]

> Zoom/Meet/Teams feels like work...

I don't feel that way at all. Those are all just apps. Remote meetings use them, but that doesn't mean that corporations own the usage of those apps. Frankly, your idea of everyone getting the invite at the same time feels more like a work-related need than a personal need. At work, we want efficiency - everyone shows up, talks, then signs off. For a personal call, being able to come early and stay late sounds far more friendly.

At the end of the day, this is all up to you. If you think there is a need, there are probably others who agree with you. But before you build, ask around to find out how many there are, and if they agree enough to pay money for the things you would build. If not, this will be a weekend project, not a business. (Which is also fine, BTW.)