Read.ai

I think I have the answer.

The documentation from Read.AI unfortunately is inadequate. There are multiple ways for the application to have access to your meetings. First, you need to turn off access to your Zoom account. If you remove the application as listed in the documentation, that is not enough. I banned the app in our Zoom marketplace settings, but it was still joining meetings for a user that had accidentally installed the app.

If you are using Zoom Workplace, you actually have to remove the cache listed here 

You also need to remove calendar access from Google, Webex, and M365 as well. Even if the app does not have direct access to Zoom, it will still read your calendar and join meetings.

Finally, don't delete your account until you have removed all connections to SSO from external providers and have entered a password to use directly with Read.AI. This way you can disable all integration access first, test to see if the software no longer joins, and then when it is actually disabled, delete your account.

This app really wants to get access to your data, and removing it is a pain. I have asked Zoom to review their ratings since this app behaves very poorly in my opinion. Turning off Read.AI's setting to join meetings didn't actually work when the cache was still present. Probably a bug, but it just doesn't sit right with me.