Carb Ice is more likely in less than “cold weather” conditions.
Have a look at the carb ice likelihood chart produced by BoM / CASA. Carb ice is one of those things you may never have experienced in your flying career, but could catch you out one day. Using carb heat to prevent icing is much smarter than being reactive, because when you’re likely to need it, it may not be effective.
My experience with Carb Ice on takeoff has been a momentary rough running as accumulated ice is ingested. The prolonged rough running / power loss is unlikely to occur at high power settings.
Follow the manufacturers recommendations is your safest bet.