I haven't experienced being a 10x developer (biologist first, coder second), but I have found myself in the position of being at the top of my game (problem solving and innovation more than LOC), while also being frustrated by the limitations of the company I was at. So, I switched jobs. Everyone at the new startup is equally or more competent than me (in their own domains, which overlap, but not too much). I'm inherently involved in more exploratory work and definitely less "productive" and "in control". I feel like I'm leveling up in a new way. It brings a different kind of stress, but one I'm glad to have.