This box has been randomly appearing for only some users in our Jira Cloud instance:

I have yet to see it, but this box has lead to several messages from Atlassian saying "XYZ user wants to try Confluence".
We use Confluence Data Center so this box is really causing some confusion for our users.
What is this field and how do I make it never ever appear ever again?
I looked at the same ticket as an end user and he had the box, I didn't. I'm full Org Admin.
Thanks fam.
- Christa