Question about 3D meetings

I have a question that is still unclear to me. I understood that we can be 30 people on a meeting. But is it possible to do for example 3 meetings in the same building at the same time with 3 different links?

I would like to be able to make events of more than 400 people gathered in the same places

It’s possible to create multiple meetings in the same 3d space but people joining different meetings won’t be able to see or hear each other. The 3d space will look the same for all the people in all meetings but they wont be able to interact in between.