I'm trying to sync them.

On Android, I scan the QR Code and then goes to this page: https://auth.opera.com/account/v3/desktop/login/main but nothing happens while on the phone I see a Confirmation Code.

On iPhone, it keeps loading after scanning or typing the annoying code and I only get "Try Again" button below.

I can't even use flow between Mac and Windows.

I'm trying to use Opera again after +15 years and looks like I should stay away from it.