Finally, after many years, finished my #zsh prompt structure. A simple and as out of the way as can be, but with all the critical information I need.

PS1 contains user type, background jobs and previous command exit codes. So normally just '% '.

RPS1 hides when user starts typing, it currently shows actual updated time.
Precmd shows execution time, history iD and end time of the previous command.
When cd into a directory information is shown.

PS4 is showing essential program information when debugging a script. This has helped me so much to more effectively find my way.

If you are interested check it out my zsh dotfiles at: https://codeberg.org/oxo/dotf/src/branch/main/zsh