Fair, this is mainly the difference in package manager. Apt/dpkg do a lot of additional steps and handling to keep your system running as smoothly as possible. Stuff like reinstalling your bootloader when it updates or keeping old kernels available. Pacman is just much simpler and only installs packages. If you wanted to keep the old kernel or multiple versions of a program you have to build it yourself.
Fair, this is mainly the difference in package manager. Apt/dpkg do a lot of additional steps and handling to keep your system running as smoothly as possible. Stuff like reinstalling your bootloader when it updates or keeping old kernels available. Pacman is just much simpler and only installs packages. If you wanted to keep the old kernel or multiple versions of a program you have to build it yourself.