There’s two big springs on a rod offset to the right of the yoke, with a carrier that puts the load over to that rod from the yoke column itself. There’s also multiple bushings for everything, so something could surely ‘click’. If you don’t feel it in the motion of the yoke itself I wouldn’t sweat it. Aileron quickly returning to center will ‘click’ as it crosses center, but only with abnormally aggressive turning or letting it spring back and forth. If you are in a vacuum with no other sound around you can hear spring noise.
It creaks and groans and clicks a little bit, it’s taking a lot of forces and it’s made of plastic. Randomly push on any part of your car’s dashboard and you’ll hear something creak or click, even a BMW with the ash hardwood and ceramic knobs packages.