You will always have the same rights as any other owners at your home resort. FL timeshare law is clear that no matter how you purchase, rights have to be the same.
Trading into other DVC resorts is an agreement with BVtC and those rules are set by the resort that comes into it.
Right now, resale bought since 2019 is restricted from booking Resoers since then, which are currently RIv, VDH, and CFW, and potentially all future resorts.
So, what you have access to today in terms of where you can book your points would be the same in the future, assuming your home resort stays part of BVtC…which it can also not be removed under certain circumstances.