Odd User name in my account that I don't recognize and can't delete it

I am using a PC running Windows 11. I have a Basic subscription with two users. When I view the Users this is one of the users:

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The First Name says Daniel talking with me and the User is listed as a member.

When I click the Edit button, I get a popup where I can add Department, Job Title and such. Nowhere is there a place to click to delete this User.

How did this User get added to my account and how do I get rid of it?