Yahoo Email Sign In Prompt Repeatedly Pops Up In Outlook 365 Email Since Early July

A Yahoo Mail sign-in prompt popup has repeatedly appeared in my Microsoft outlook.com email account since early July (it is now 8/25/23). I don't want Yahoo Mail to control my Outlook Mail account. Here's a screenshot of the popup prompt:

When I proceed through the promptings here's a screenshot of the next popup prompting as I continue through the process of entering credentials:

After entering all the required credentials (User Name, Password) on the Yahoo screen, the following box appears saying I agree to sign into my Microsoft Outlook account with my Yahoo account. (Here's the screenshot:)

I don't want Yahoo Mail to control my Outlook Mail account.

Please tell me how to stop the popups from appearing. Thank you.