I heard somewhere that it did.
Setting aside the fact that there are times when a Cryo Zane shouldn’t use cryo weapons and brain freeze can proc CCC without a cryo weapon:
The concern is that an incendiary grenade, or even worse a Fire Moze in co-op could be hurting a Cryo Zane’s cryo efficiency and taking longer to freeze enemies (outside of brain freeze). Hell this could apply to any char trying to freeze while incendiary is also being used, not just Zane.
Does anyone know this for sure, seems to be very little I can find on it.