I realize nothing is going to change short term, but here is a bit of feedback…
We could not use breakout room pre-assignments as most of our participants don’t have zoom accounts and our integration gathers input from the participants and we derive breakout groups based on that data.
As mentioned in a post above as a proof of concept we created new meetings instead of breakout rooms in order to enable our rich virtual conference workflow.
We used the web sdk to auto-switch participants into and out of those (breakout) meetings.
We found that the audio and video quality of the browser version of zoom is not good enough at this point.
We abandoned a fallback to launch the native zoom app as there apparently is no api to send chat messages to a meeting chat (rest API support chatting in meetings) and thus no way to tell participants to come back to the main meeting.