Prior to this new version of Outlook, Outlook was much more functional than Thunderbird and it wasn’t close. That being said while a year ago I’d say you were smoking dope, as of right now you are correct, new Outlook sucks.
Ah, I have only used both a relatively small amount, and from my experience I think thunderbird is more functional, flawed though my perspective may be. In what ways has outlook been more functional, from your perspective?
I pay for a plugin so I can use Thunderbird with the exchange server (and 2FA) my office has. Best purchase in a long time, I think it's like a dollar a month or something, pretty cheap.