This is no longer an issue for my team - the install button seemed to make the chatbot work, although it’s still unclear whether in production we’ll have to get each individual user to authorize its use or whether it can be installed just one time.
However the more pressing issue for us right now is this Chat linking via Chatbot messages endpoint. Any insights on why chatbot-created chat-links to a channel might not be working in the zoom client would be really helpful!