Comment by Findecanor

I think Nokia's original Micro USB socket design had only two through-hole pins, which was not sturdy enough.

A standard USB-C socket has four: one in each corner like some later Micro USB sockets. There even exists USB-C sockets with all through-hole pins but there's no space for USB 3 pins so they are all USB 2.0 or charging-only.

I used to buy cables with non-standard reversible Micro USB plugs, but I think there was only one manufacturer of them and now I can't find replacements.