You might be right about a Leetcode effect and the difficulty to find new interesting positions. But OP wasn't stressing that at all but the desire to architect and manage. I might have put to much emphasis of the managing and too less on the urge to architect and see things from above. I agree.

I am scientist and worked from time to time as a research engineer merely to pay the bills, so I may see things differently. I always like doing lab / field work and first-hand data analysis. Many engineers I know would likely never stop tinkering and building stuff. It may be easier for a scientist than for an engineer to still get trilled, I don't know.