Yes, but you could still buy a new motherboard without UEFI support a year ago, and there are still some units in stock online.

It’s way, way too early to drop support of an OS that is the latest version that can be run on hardware that current.

People who spent 3 grand building a computer in 2021 should be able to have OS support for at least a decade. They can’t upgrade their OS, so the latest OS they could purchase should be maintained longer.