#fzf is the new emacs: a tool with a simple purpose that has evolved to include an #email client. https://sr.ht/~rakoo/omail/
I’m being a little silly, of course. fzf doesn’t actually check your email, but it appears to be basically the whole user interface for that mail program, with #mblaze wrangling the emails.
I’ve been thinking about how I handle my email, and am tempted to make something similar. (When I originally saw this linked the author was presenting it as an example tweaked to their own needs, encouraging people to make their own.)
This approach could surely also be combined with #jenny, taking the place of (neo)mutt. For example mblaze’s mthread tool presents a threaded discussion with indentation.