So much of work is communication in many modes and channels. And it's really really hard to get right.
No one thinks about how to orchestrate the most functional communication among various roles/tasks/etc. People just treat it like something that everyone knows how to do well.
Just having physical meeting rooms, or slack channels or zoom is like giving the end user a command prompt.
That's a bad metaphor because the command line is less taxing than zoom.
Not to mention the sheer waste of time.
No one has managed to redesign a shared calendar. So the key is probably not using the calendar as a tool to design communication.
Which people do as a default and which it is not.
This leads to a lot of us doing time-violence to one another.
Zoom was great in the previous context of work. I loved it before it became the everything channel.
There is no tool that will just handle it. AND it's different for every org based on purpose, culture, etc.