This is fascinating to me. Do you have any links or suggestions for this workflow to learn more?
I am glad you asked, because I actually wrote a series of blog posts on the topic of how Emacs replaced my old Tmux+Bash CLI-based workflow. The link there is to the introductory article, in the “contents” section there are links to each of the 4 articles in the series. The “Shell Basics” (titled “Emacs as a Shell”) might be of particular interest to you.
If you have any specific questions, or if you have recommendations for something you think you would like to learn from one of my blog posts, please let me know. I would like to write a few more entries in this blog series.