Yes, but what about 14th gen. Surely that will be DDR5 as well so the socket changes make little sense.
However, AMD's AM4 socket came into a different market where they had trouble getting OEMs to make mobos for them. Whereas while we know Intel loves to sell chipset, mobo OEMs love it too as it allows them to sell new stuff. Although some normal retail PC OEMs might like it less as it makes inventory management harder for them.
OEM relationships are tricky. Doubt any like Intel leaning on them with chip allocations shenanigans and similar, but OEMs do like the annual upgrade cycles. Still fairly convinced that some of AM4 controversies around support for PCIe 4.0 and later Zen3 had, at least partially, something to do with OEM lobbying so it was nice of AMD to tack all the slack