Is your contention here that the technology to make this seamless and reliable experience doesn't exist, or are you agreeing with me that it's not trivial to implement?
I think that unless you're a nation-state with huge budgets, creating a seamless and reliable experience is relatively non-existent. We've tried all the major vendors for conference rooms, and they all have sharp edges that give you continual paper cuts. The same is true for tech for remote users (Teams, Slack, etc etc.). That doesn't mean they're not good enough, but they definitely still suck.