Every time they change something in Windows, they never take the old thing away but instead keep both. Which means there's a myriad of ways to get to the control panel. And there's multiple variants of the control panel UI...
Outlook is another good example, there's 3 different UI's where we can add/remove accounts.
Result: New users use the new (default) UI, old users use the old UI, admins use what's quickest.
For every other change you have to click "Additional mouse options" and are taken to the old UI.
MS Win10, and to a lesser extent Server 2016-19 has increased the number of clicks it takes me to get to the thing dramatically.
In 7 I relied heavily on the search feature - it was wonderful to type "Programs and" hit enter and get to the page I want. Today they have hidden (in win10) those old UI screens.
It is frustrating.
I would accept the new UI if it had feature parity, but it can't even perform the most basic tasks (mouse pointer speed for example).
Edit - Spelling.
I totally understand mobile phones having having barely any space available. Even desktop optimizing for common use cases. But there got to be a limit on how much you dumb down your software.
The UX for system settings is still like barf, arbitrarily choosing between two UIs depending on the setting is some shit that wouldn't even fly in desktop Linux in 2019, and was an artifact of the Win8pocalypse which Microsoft later walked back. But searching for settings is still possible.