Aileron freezing was a routine inconvenience with the 146/RJ. Type IV fluid and buildup of residual fluid that swelled when moisture added was to blame. Other types with non-powered controls also suffered. ISTR that someone at FlyBe came within a whisker of ripping the tail off a 146 after the elevator froze up.
SHD 330/360 icing was an issue that you needed to be ahead of. Watched a fellow pilot stall a 330 on his first line trg flight - FL 70 over the Pennies, The stall was very benign. However, I did once have ALL the controls on a SHD 330 frozen up. The winterisation check to dry out the control run bearings was deemed the cause. Trimmers worked fine though. Back in the 80s it was all part of the fun…