In the documentation for wled it says that you can use rgbw led strips, but I can’t seem to find how these would be wired to the esp32 board etc, anyone ever done this?
Typically with using wrgb (SK6812) lights there is a power rail and a data signal. This data signal can be connected to most esp32 gpio pins but I think the default is GPIO 2.
What kind of light strip do you have? There is also lots of information on the wled Github page.