I think the 10x programmer in the sense of them being a great developer, with good perception and able to be highly adaptable and fast does exist.

The problem is they don't last long. Those kinds of people can do it for a few years, then burn out hard and become a 0.1x programmer for most of the rest of their career.

Being a 10x developer isn't a good thing. You're going to be spreading yourself so thin and massively overworking. That never ends well.