Any use?
https://answers.microsoft.com/en-us/edge/forum/all/how-to-stop-microsoft-edge-popup-with-bing-at/1bf53808-eab8-42f5-ac24-6f17d147aa06
Yahoo wants to make money out of you, so it's probably unsurprising that they promote their paid service. It's akin to the way that the providers of free anti-virus programs occasionally try to push their full security suites onto you, so you might have to put up with.
However I can't tell you what I think of Yahoo as an email service - AB doesn't permit the type of language I'd like to use here! Get yourself a
decent email account and use the 'mail collector' facility to forward any mail sent to your Yahoo account to your new one:
https://www.gmx.co.uk/