
"You'd be surprised. On a global scale, the split between AM4 and AM5 is not far off from 50/50." So, says David McAfee, AMD head of Client Channel Business, of AMD's current CPU sales (via TechPowerUp).
In other words, half of the CPUs AMD is selling today are still made for the old AM4 socket. And, of course, the last family of chips made for the AM4 socket was the Ryzen 5000. The Ryzen 7000 and latest Ryzen 9000 CPU families both go into the current AM5 socket.