Why buy a 750.- motherboard that is designed for WaKü and then not use one?
The ASUS ROG MAXIMUS Z690 HERO series are those with heat sinks/without cooling, cost a good deal less, but are currently only available in black at Digitec, and may also be available in white in the near future:

ASUS ROG MAXIMUS Z690 HERO (LGA 1700, Intel Z690 (DDR5), ATX)