Hello,
I see that others have answered, but if your question is more about blocking third party Ai like Otter or Fathom I will add some thoughts.
If you have an account that allows support tickets I have heard that you can request Zoom support to block certain domains.
https://community.zoom.com/t5/Meetings/Stopping-users-with-Otter-ai-from-joining-meeting/m-p/140561/highlight/true#M80199
if your account supports it, go here to open a ticket. https://support.zoom.us/hc/en-us/requests/new
Another approach is to require registration and turn on the Captcha.
Go to zoom.us/profile/setting.
Enable the Show a "Join from your browser" link option.
Check the Require solving a CAPTCHA for guest users (users who are not signed in) option.
This should prevent meeting bots like Otter.ai from joining your meetings.
Regards
If my reply helped, don't forget to click the accept as solution button!