Now I have never been on a real A350, but I have flown the EMB-120, 727, Fokker 100, 737-800 and A320 family of aircraft during my career and you can't hear the flap's movement in any of those planes. I've also been on the jumpseat of multiple other types and have never heard the flap's movement from the cockpit.  I'm guessing the pilots don't hear the flap movement in the A350 either. Could someone please have a look and see if the sim is representing the real world flap sounds for an A360?

Edited April 24, 20251 yr by Ralgh

It is correct that the sound of the flaps can be heard inside the cockpit.
https://www.youtube.com/watch?v=s9Pb_3qN910