/sbin are system binaries, eg root only stuff, dunno the rest but I would guess there are some historical reasons for the bin usr/bin separation
I know the distinction between /bin and /sbin, I just don’t know what purpose it serves.
Historically, /bin contained binaries that were needed before /usr was mounted during the boot process (/usr was usually on a networked drive).
Nowadays that’s obsolete, and most distros go ahead and merge the directories.
It’s easier to manage security that way.
Instead of having one binary folder full of stuff that’s intended to be run with privilege access and non-privilege access, all the privileged stuff goes in sbin and you don’t even see it in your path as a regular user. It also means that access rights can be controlled at the folder level instead of the individual file level.
