https://techcrunch.com/2021/07/14/clubhouse-dms-backchannel/

We knew DMs were on the way to Clubhouse and today the new feature landed, spicing up the audio-only app with a text-based chat feature. Clubhouse’s new direct messaging system, called “Backchannel,” gives users an oft-requested way to start conversations behind the scenes on the social audio app.

Backchannel offers both one-on-one messaging as well as group chat and generally adds quite a bit of utility into the voice-only social network. Speakers can organize in advance or coordinate live through messaging while running a room. They can also accept text-based questions, which some listeners are probably more comfortable with.