Although we don't have a hard limit on the maximum number of user you can have in a channel, we do have a general guideline depending on the two different channel types we offer:
1. Public Chat (using Open Channels): A single channel can handle up to 1000 simultaneous users like Twitch-style public chat.
2. Private Chat (using Group Channels): A private chat can handle up to 100 by default.
Hope this helps! :)