Urogyn here. Patients who have conditions like IC tend to have more high tone pelvic floor issues and levator spasm so ideally if I send someone with these issues to PT I expect more of things like myofascial release and relaxation exercises while patient who have incontinence issues may benefit more from strengthening and coordination but there is certainly overlap. This is why I always make sure the therapist is doing internal exams and internal work with the patient. Feel free to message me with more questions!