You can check your storage space in Windows 10 through the "This PC" menu in your File Explorer, or your Settings app.

Huh? There's no "best" or "wrong" value for the crossfader or sound enhancer, those are aesthetic choices you should set to whatever you like . I do think sound check defaults to off, and the airport ...

You can easily check app usage on your iPhone to get an overview of your screen time activities or find the time you've spent on individual apps.