Most 10x engineers I've met are usually very creative and care deeply about the user experience and keeping code maintainable over time. Most 1x developers just care about getting the job done regardless of care or code quality, which in my experience has led to conflict.
I believe, you have got the multipliers switched. Most 1x engineers/developers care deeply about users and the end product, and also likes to keep the code well maintained and performant, so they can do their peaceful work and go home, while not making the life of the user any more miserable. Most 10x engineers are too brilliant and remain busy rocking the boat and doing so many mind blowing things at any given time…
And the 10x you mentioned are not 10x. They are 1x with frenzy.
If one is not multiplying the team output, they are simply 1x or lower (maybe a few exceptions)