They overturned "may issue" laws where you could meet all the training and qualifications to legally carry but a state official could make an arbitrary judgement call based on if you had a "good reason" to carry.
All states with "shall issue" are still in effect because its a straight here are the requirements, if you meet them and are not a prohibited person, you get your permit.
Also, the right to bear arms is explicitly enumerated in the constitution, so taking that right away isn't up to the states. The right to an abortion is not. So it goes to each state to decide.