Using Classic Outlook on Windows for personal email, calendar, and contact management
I have the same issue.
I found out that Outlook 2019 seems to be using IE for the sign in procedure. I could'nt get IE to approve any security key.
After unstallling IE outlook still uses some kind of browser UI that does'nt support security keys.
Why would that be a gmail support issue? It's a problem in the Outlook account setup procedure.
Btw. I've allready added the key in "Use Windows Hello or a security key "
Kindest Benny
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