I'm a total noob in this space but I'm using pacman, paru, yay, shelly. Are those different than "userspace package manager" or are these not relevant because it's Arch?
User, as in non-root/non-admin. Pacman, paru, yay, shelly ask for root permissions.
User, as in non-root/non-admin. Pacman, paru, yay, shelly ask for root permissions.