No, LGA 2011 v3 is not compatible with an LGA 1151 socket.
No, LGA 2011 v3 is not compatible with an LGA 1151 socket.
When considering the socket, it's important to grasp the chipset details. A Z270 motherboard uses LGA 1151, but it won't work with an i7-8700 processor. People often mention this when discussing compatibility.
It seems you brought up an older discussion about LGA1151 chipsets. The key points are that there were two versions—identical in pin layout but different in functionality—Intel altered the pin assignments. Version 1 supported Skylake and Laby Lake CPUs, while version 2 worked with Coffee Lake and Coffee Lake Refresh chipsets. Running Coffee Lake on version 1 boards required custom BIOS modifications, as official support wasn’t provided.