I tried this Skype via insiders and it's... unusual. Things have been much more customizable but Skype has been a battery hog.

It looks more like Snapchat to me now instead of a business tool to hold meetings. My colleagues are mostly on Meet and Zoom now, Skype is barely used in my circle.

Do not forget to backup your history before upgrading in Library/Application Support/Skype! It's not compatible.