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Indeed. The point of a control surface is that they generally increase or decrease the overall amount of lift of the aerofoil they are attached to (or comprise, in the case of the Typhoon’s foreplane, or a stabilator etc.) by modifying the aerofoil profile/angle of attack.
I’m not aware of any control surfaces that aren’t an aerofoil shape, but even if it was just about reaction due to a surface hitting the air at an angle, that would still be about creating a pressure differential between the lower and upper surfaces.
rodan
gbj_tester
FTFY