Following an Igor's Lab report about changes to the LGA 1700 socket design, WCCFTech tested out multiple previous-gen AIO coolers that are theoretically compatible, discovering that many made inadequate contact with the Alder Lake IHS, meaning higher temps and lower boost clocks.
https://www.notebookcheck.net/LGA-1700-s-asymmetrical-socket-design-means-that-older-AIO-coolers-could-have-trouble-with-Alder-Lake-thermals.579581.0.html