I can confirm that the 14900K no longer have this functionality as shown in this filtered list that I have created for the CPU that supports vPro Platform Eligibility : https://ark.intel.com/content/www/us/en/ark/search/featurefilter.html?productType=873&0_VProTechnology=True&1_Filter-Fami...
(out-of-band remote power on/off/reboot, Serial over LAN, IDE-R) Wireless Intel® AMT Desktop and Mobile Architecture for System Hardware: DASH v1.1 compliance Intel Remote Manageability (out-of-band Remote KVM) Intel® vPro™ brand eligibility Intel® Transparent Supply Chain 14 Product...