In my world stand-ups are mainly status, blockers and other ops/admin updates.
No functional/topic discussions. If they’re required you schedule those in the standup and decide who participates.
No need to expand beyond 15min in that mode.
No need for everyone to be in a room together either, to do that.
It’s more efficient for us at least.
It reduced the number of back and forth on slack/other tools quite a bit.