Would sure be nice if the website actually had a way of telling if its being displayed on a mobile device (in a way that would correctly detect a landscape mode

Would sure be nice if the website actually had a way of telling if its being displayed on a mobile device (in a way that would correctly detect a landscape mode ipad for instance), as well as a way of telling you are on a metered connection, or even slow connection. There are no reliable ways to do any of that in the browser.