When I tried to register for Atlas webinar, host country selection was mandatory. By default it displays the USA first value in the dropdown and have to scroll down to select another country. It would be a good user experience if on the registration page visitor/user's country is identified and by default selected, this will prevent unnecessary scrolling.
Also, a very annoying thing is that in order to register for the webinar have to agree to subscription. Subscription to email and other notification should be optional, otherwise, it's a bit dodgy tactic more suitable to some social media companies who are championed in these sorts of practices.
Apologies, if this is the wrong product/category but couldn't find any other category suitable for the webinar registration.