Earlier, AMD also suprise-restricted ECC to PRO versions of (non-LPDDR variants of) their Zen 4 laptop SOCs, as in the “yes” in the ECC row silently changed to “no” on the product pages for the 7640U and the 7840U at some point between when the 7x40U Framework 13 preorders opened and when it started shipping. (It happens to have been the first laptop with those SOCs.)