Standups with multiple teams, or simply very large teams, are a terrible idea. I'm currently in a team that has very quick, fun and productive daily standups (despite not even having a good standup space for it), but we have only 3 devs and a handful or other people involved.

But I've also been in projects where standups drag on and on and on, and they're hard to get under control. Usually, those projects had much larger teams.

I suggest smaller teams, and if you have this kind of multi-team standup, discuss with your team to have your own independent standup instead and send one representative to the big one.