I have two, as yet unsolved, work from home use cases: - I often would like to watch one team member update Trello or Mural, at the same time as another update

I have two, as yet unsolved, work from home use cases: - I often would like to watch one team member update Trello or Mural, at the same time as another updates Github, while I update a contract. I'd move those streams to my 4k monitor, to keep them readable, while I work on my primary. - If I'm running a demo to a client, I'd like to have one stream sharing the demo platform, while another shares video of my haggard face, and a third shows my presentation. I don't want to share my whole desktop, to avoid sharing slack or SMS notifications. OBS can probably do #2. Nothing does #1.