installed new brake light switch onA833

You only need to press the pedal down far enough to achieve sufficient clutch departure such that it does not grind going into reverse. Any more than that is just wasted motion and extra stress on the parts, and in rare cases drives the fingers into the back of the disc. It may be helpful to increase the freeplay, or move your seat back,lol

I cannot for the life of me think how replacing a brake-light switch, with no other changes, could affect the clutch-fork action.