Academia is the place with the least coherent policy. In the few institutions I'm aware of the AI rules for, the guide is usually 3 lines long and it is basically we don't promote usage of it, which is a meaningless phrase. Therefore you end up with students who are not supposed to use it unless they are international masters students who require it because of language barriers, and in that scenario, it is basically allow them to use it however they like even if it makes a mockery of the rigour of a degree. Lecturers can use it as and when they wish, then you get researchers who either use it endlessly or not at all. Then upper management who use it instead of using their own brain.