The first things, there were fixed already by microcode update. They do not require OS patching, that cause slowing down and instability. It is why I do say, they are Spectre/Meldown free and this is what I want. I will not invest in any CPU which requires OS patching, especially for a new PC.
Second things, I don't like marketting tricks of Intel. First they make CPU's truly Spectre/Meldown free and they spend a lot money for marketing this fact, then they release new series which have the old backdors. That is a cheat and not focusing on security at all.