>>>With Microsoft Edge, when clearing the browser cache, it deletes the cookies from the favorite sites. Is there a way to make sure the cookies from favorite sites, or a specific site, will be preserved when clearing the browser cache?
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>>Maybe https://winaero.com/keep-cookies-for-specific-sites-when-close-microsoft-edge/ ?
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>Thanks, as per the documentation, this still reflects the interface of the actual version. However, as seen in attached, when making a test, this does not work. It does say that cookies from those sites won't be cleared. But, they are.

You could check the "Cookies and site permissions" section to see if there are any other settings there which would override "Clear on exit".

Are you using any 3rd-party cookie manager, or does your antivirus have any kind of browser add-in/privacy manager or some such?