People who are interested in this topic might want to take a look at this
examination of the subject from a couple years back:

  https://coredumped.dev/2022/05/19/a-vision-of-a-multi-threaded-emacs/

I suggest follow-ups to emacs-tangents, and have attempted to encourage
that. Please forgive me if my somewhat clumsy attempt to do so goes awry.

Thanks!
~Chad