It won’t matter in terms of admissions. There is no expectation that you would take AP exams if you are in an IB curriculum.
The only reason I can think of to take AP exams is if you are applying to schools that will take AP credit but not IB. I know that some of DS’ friends took the AP chemistry exam at the end of SL Chem because AP credit would be given when none was given for SL. Some schools give credit for an AP score that is easier to get than the IB HL score required. So it’s more about credit and/or placement than admissions.