Wear leveling is done in the layer that translates between LBAs and actual physical chip numbers and addresses. Drive partitions are well above all of that in the abstraction stack, and partition tables are totally beyond the scope of a drive's concern (even for spinning rust drives). These days it is even common for a drive to have two different partition tables in two different formats with different partitions listed. Bootloaders and operating systems are the only things that should care about partitions.