5. It's not about policing - it's about knowing what's being launched on startup and at least being able to disable items one by one to understand the root cause of your slow boots (and even that doesn't always help since some slow downs are caused by bad/misbehaving drivers). The startup tab in the task manager is absolutely insufficient as it shows pretty much nothing.

6. Random scripts from the Net to "improve" Windows 10? What could possibly go wrong? ;-)

And you're kinda neglecting the elephant in the room: you cannot uninstall apps in Windows 10 at all without using Power Shell. For some reasons Microsoft decided not to include the apps anywhere in GUI, e.g. in Windows Components which if I remember correctly were/was created exactly for this purpose.

In short the apps and how cryptically they are handled is one of the worst "features" of Windows 10. And don't get me on how they are handled in file system: it's a huge effing mess. And how you cannot really access/edit/remove apps data even when you're an administrator.

In short, UWP is an alien technology to Windows 10. UWP should have been a new different OS altogether (and probably that was the plan).