Okay, it was worth a try. I see another person is facing similar symptoms; perhaps you can join in: Create meeting API returning blank response with 200 ok - API and Webhooks - Zoom Developer Forum
The API Call Logs for my JWT application show an HTTP 201 status code with a body of {"topic":"Sample Meeting","type":1}:
{
"endpoint": "https://api.zoom.us/v2/users/[redacted]/meetings",
"response_headers": [
"Set-Cookie: zm_aid=""; Domain=.zoom.us; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/; Secure; HttpOnly"
],
"date_time": "2022-01-12 13:12:20",
"method": "POST",
"request_body": "{"topic":"Sample Meeting","type":1}",
"response": "{"uuid":"[redacted]","id":[redacted],"host_id":"[redacted]","host_email":"[redacted]","topic":"Sample Meeting","type":1,"status":"waiting","timezone":"America/New_York","created_at":"2022-01-12T18:12:20Z",[...]",
"request_headers": [
"authorization: ******",
"connection: close",
"content-type: application/json; charset=utf-8"
],
"request_params": [
],
"http_status": "201"
}