No offense but you sound more like a “principle coder”, not a principle engineer. At least in many domains and orgs, Most principal engineers are already spending most their time not coding. But -engineering- still take sip much or most of their time.
I felt what you describe feeling. But it lasted like a week in December. Otherwise there’s still tons of stuff to build and my teams need me to design the systems and review their designs. And their prompt machine is not replacing my good sense. There’s plenty of engineering to do, even if the coding writes itself.
I make documentation and diagrams for myself rather than writing code much of the time