frankly, as long as folks are communicating via open standards rather than being locked into some vendor silo then they should use whatever protocol works best for them - XMPP & Matrix bridge together fairly well these days.
Based on the phone-home stats in Synapse there's around 300K DAU currently on the network, but this is a major underestimate given other stats which suggest only about 30% of public servers enable phone-home.
Based on the phone-home stats in Synapse there's around 300K DAU currently on the network, but this is a major underestimate given other stats which suggest only about 30% of public servers enable phone-home.