Intel only supports ECC on a subset of their consumer processors, and I don’t believe any of their mobile processors support it. (I was wrong - some of the H-class chips apparently do)
I also believe in Intel’s case that ECC support requires both chipset and processor support (subset of both) so I don’t believe any existing Framework has had support for it. Maybe the Ryzen laptops will do so, but we’ll probably have to see if the support is enabled in the firmware.