I used to run a repair shop. USB-C is definitely a dust magnet. Lightning is no better though. I cleaned just as many Lightning ports as I did C ports. They were slightly easier to clean though, without that fragile central post getting in the way.

I’ve also worked on literally tens of thousands of iPhones, and have never seen the clamp break on a lightning port, so idk what that dude is talking about. The actual clamp is on the cable, it just sits in a hole inside the port along either wall.