The meeting itself
Google Meet
Capacity is published per plan — 100 to 1,000 participants, 24-hour meetings, in-domain streaming and a hardware add-on — but the evidence says nothing about screen sharing, breakout rooms, host moderation, waiting rooms, or behaviour on a bad connection. I cannot credit meeting controls I cannot read, so this sits between the low-limit and most-teams anchors.
Wire
Video conferences are stated up to 150 participants with instant meetings and file sharing, and guest links can carry passwords, but I found no public information on breakout rooms, host moderation such as mute-all, screen sharing as distinct from file sharing, or what happens to the call on a constrained connection. Workable at team scale, undemonstrated under load.