No one pays for parking at any WDW resort, not just DVC members. Disney adopted, in 2018, a parking fee for persons staying at a resort but not those just visiting the resort during the day, which fee did not apply to DVC members staying at a DVC resort or any other resort using points; it dropped that parking fee in January 2023.
The usual rule, applicable to anyone wanting to park at any WDW resort, is that you cannot park at a resort unless: (a) you are staying there, (b) you have one of the valid reasons accepted for being at the resort, e.g. a reservation at a restaurant, visiting someone who is staying at the resort, going to a golf course at a course in the resort, or (c) you have valet parking for the day at the resort at which you are staying, which allows you to valet park (without additional cost other than tip, and without any special reason for being at the resort) at any other resort that has valet parking.