One of the first fighter aircraft to use sawtooth was the Swift circa 50s.
Hunter and Swift suffered pitch up when pulling G sonic/supersonic.. My first experience was in a Hunter. Stick hard forward and still pitching to about 4 G was not pleasing.
Swift suffered worse than Hunter and lost reputation too late to be revived with modified saw tooth wing.
Flew a sawtooth Swift and did not encounter pitch up, but didn't try for it either.