IgorsLAB reviewed the Aqua Computer Kryographics Next for GeForce RTX 3080 and RTX 3090 Reference Design A quote from the article:

A proper water cooling makes sense for power losses over 300 watts and thus creates a real added value. With the Kryographics Next, Aqua Computer continues on its path of precisely crafted coolers and offers a GPU water block for NVIDIAs current GeForce RTX 3080 and RTX 3090 refernce boards that even manages.

  Aqua Computer Kryographics Next for GeForce RTX 3080 and RTX 3090 Reference Design Review