Using New Outlook on Windows for professional communication and productivity
@Chuck Ze,
I repro the same issue you do that drag and drop is not working. The option that currently works for me is right click the email and click Save but that is limited to one email at a time.
I found the bug for this, and the fix was supposed to come from Edge in builds higher than 125.0.2500.0. I installed Edge Canary that has this build and made it default browser, but the issue persists. I get errors saying that the browser crashed or no error and a blank Downloads dialog. I'll test more later when I can look into it further.