They both enforce certification for products, just that one is enforced through trademark and copyright law and the other cryptography. In both cases can ignor

They both enforce certification for products, just that one is enforced through trademark and copyright law and the other cryptography. In both cases can ignore certifications and have a working product. I run uncertified, open source Matter things myself. It's not like HDCP in that HDCP is a technology no end-user wants, but something certain content creators want.