Upgrading from old Windows to Mail Outlook (New) dropped all my Gmail adresses

A it says, i delayed upgrading as far as i could.

And I know very well that Windows Mail was not great app, but I used it for my non work accounts (for work I use proper Outlook) and it was snappy app that looked like a Windows app.

And I understand that Microsoft wanted to make something better, but I’m not sure this is the way.

Thurrott