I have tried everything suggested to no avail. THE solution that continuously works (no longer plagues me with the password question) was to use the Outlook 365 app. I know, it's a copout, but since Microsoft Edge comes with Outlook 365 (Top Left 9 dots, app launcher menu for Microsoft 365), this supported Outlook, although not the same look and feel of the various Outlook versions (I was using 2013 which I liked and was ferociously attached to as I had it setup the way I wanted it since I was a mail administrator - retired in 2017), I had to learn to use it (365) in my old age. Sorry, although I have not uninstalled the 2013 version, I am now using 365 every day. Do I like it better? No. I still have a bitter taste when I use it. However, I can live without the constant demand for a password that does absolutely nothing. It seems that I can also live with the browser version of Outlook, go figure...
Hope this shares the one solution with all...