pacman -Rns $(pacman -Qq)

No

That’s CC BY-ND, not CC BY-SA

tar: You must specify one of the '-Acdtrux', '--delete' or '--test-label' options
Try 'tar --help' or 'tar --usage' for more information.

First command fails because -name is case-sensitive

That’s not how /dev/null works.

Try this:

sudo cat /dev/zero > /Windows

hyfetch

There’s uYouPlusExtra and YouTubeRebornPlus. I’ve never tried either though, so I don’t know how good they are.