From my experience, not that frequent. Had the occasion to watch a conference from a Dev in my company that would get rid of a lot of the overhead added by the

From my experience, not that frequent. Had the occasion to watch a conference from a Dev in my company that would get rid of a lot of the overhead added by the Mono Behaviour in Unity. Getting better performances at the cost of less usability. In that case, one wonder why event bother using Unity?