I'm suspicious it is related to the way Windows 11, wants to securely lock you into using their version of windows, in a locked down computer, using a windows account. Hence locking the CPU into that particular vendor, using hardware one use only, internal 'fuses', seems to be all the rage these days.
I also suspect, if we question those vendor(s) about this, they would claim, rightly or wrongly, that it is needed, for security reasons.
I'm disappointed that AMD are (apparently) happy to allow their CPUs to be vendor locked, in a permanent and unrecoverable way. AMD seem to have gone the way of being Intel like, and more concerned about profit and things, at any cost, while ignoring/hurting the consumers and users of their products.
Which is suppose to be a common business trend these days. I.e. big businesses being run by big accountants, rather than big engineers, at the top of the companies.