> USB 3 connectors and ports were pretty much always blue.

I’ve never seen a blue connector and ports in most laptops are just body coloured like in MacBooks.

It's rather ubiquitous, I'm surprised you haven't seen them. The plastic bits in the USB 3 ports in my motherboard, case, keyboard, _and_ the USB ports built into my monitor arms are all blue. Lower USBs are black. It's not universal, but it is very common.

Aren't those the ports? The ports are blue. I haven't seen a blue connector.

The metal bits aren't, but the plastic inside is.

Ubiquitous outside of Apple ecosystem only though.