Do you have to root to install Debloater?
No root required. The Verizon Note 4 can't be permanently rooted. Someone in this discussion put the link up for downloading the debloating tool. That tool gets loaded onto your computer - USB your Note 4 to the computer and turn off all the extra junk VZW installs on your device using the newly installed software.
Word of CAUTION - Turning off the wrong stuff will render your phone useless......BE CAREFUL!!!! Oh, I am not responsible for mistakes, so read a lot before messing with that program. Good luck.