Those affect Intel much, much more than AMD and once you include the fixes it always get better for AMD than without because, oversimplifying a lot, when doing

Those affect Intel much, much more than AMD and once you include the fixes it always get better for AMD than without because, oversimplifying a lot, when doing branch speculation "Is it branch A or B ? I will guess A and pre compute that" Intel didn't bother with any access check during the prediction and only ran them after once confirmed it was indeed A (so it already had the result and merely did the ACL check), whereas AMD was already doing all the checks even during predition. That's why there is an entire range of such weakness that doesn't affect AMD while it hurts Intel very strongly.