Im in a large company, sometimes we have long incident meetings running for hours and new idiots join in the middle "what happened?". Now at least we can get summaries of the past hours during the meeting to catch up without bothering everyone !
Seems very idealistic :)
I think this is about when the app is broken and people are keeping a meeting app open to communicate with each other as they scramble to fix things.
So the limitation here is more about problems not being solved yet rather than how a 'meeting' is organized.
I'm aware this idealistic, but I would suggest simply not doing that. Don't have hours long meetings with people joining midway through.