That, and they don't do video, and they don't do live. Podcasts are progressively moving to both of those (live as a Patreon incentive, for example, or Twitch/Y

That, and they don't do video, and they don't do live. Podcasts are progressively moving to both of those (live as a Patreon incentive, for example, or Twitch/YouTube) and tools like these are limited. There are limits to what external tools can do for video; at some point you either need to be a video mixer (and this you are not doing in a web browser, unless you want people like me to ask "hey, how do I configure interpolation on my HDMI intakes?" and you go "uhhhhhh" because you have no APIs for that), or you need to plug into a video mixer. I mentioned upthread, but the best option for these cases that I can see is ripping each video and audio feed out of a VoIP solution and sending them to a video mixer via NDI. I'd pay decent money for that.