On top of that, the OS feels more bloated and disorganized than ever, with something like six different UI frameworks all present in various spots on the OS; system settings are scattered across the Settings app (new) and various legacy panels like Control Panel and Network Connections.
What else... Microsoft now requires an online connection and Microsoft account to sign in to your PC; no more local-only accounts allowed.
I'm sure there's more I'm missing. It's not a pleasant operating system.