Non-server Windows editions, at least before 10, had security updates for almost 10 years. And new software often continues to function on old versions of Windows for far longer.
I wasn’t trying to imply that Ubuntu has longer support than windows, only that it doesn’t constantly make breaking changes. If you want you can use it and update once every five years and have a fairly stable desktop.
Sure, if you don't count all the software that no longer has a package in the latest version's repo and therefore is no longer available. Oh and whatever features GNOME decided to remove this time.