WLED supports WS2811 RGBCCT, but it needs to be set to FW1906 in the app, which is not very intuitive.
Most users will simply set it to WS2811 RGB, causing the LED strip to malfunction and leading them to believe that WLED does not support the LED strip.

WS2811 RGBCCT led strip link:
https://www.aliexpress.com/item/1005009812073953.html