Gmail account shows up under my Outlook Login?!/

I’m not sure when it happened but I have been looking into every possible linked account, recover email, email alias and found nothing to explain this.

Only in outlook mail, when I click on my headshot icon in the upper right corner, it has my name and my gmail account under it. If I use the shortcut under the square box at the top right to go to one drive, it correctly shows my hotmail.

Not my skype account, office365, or xbox. Even if that email account was associated somewhere it really shouldn’t show up as the account I’m logged into. I can sign out and log in fine. This shows up on any machine I use so it’s not a local alias or something. Any thoughts?