Password is usually the string of 4 numbers/letters beside the link
As for installing, make a folder called 0004000000106200 inside the plugin folder in your SD root, rename the file to cheat.plg and put it there.
@FAST6191 - totally agree. not sure the reasons people use vanced/revanced over newpipe.
I guess it's because of people still wanting to use their yt account (with vanced)?