I use Fish as my shell. It’s got some really nice convenience features, without needing customization, which I find useful. If I’m working in a VM or some server for a bit longer, I’ll often just install the fish package and have my normal level of (good) usability.
Downside is that Fish uses somewhat different syntax than Bash, so I can’t just copy-paste more complex commands into there. But yeah, then you’ll see me run bash, then the complex command in there, and then I’ll exit back out of there.

For the shell prompt, I’m using Starship with a bit of a custom theme, based on their Gruvbox Rainbow preset:

So, what it shows there is:

• the exit-code, if it’s non-zero
• the duration how the long the command took, if it’s longer than a few seconds
• the timestamp when that command finished
• the path where I’m in
• the Git branch and whether I’ve got changes that are uncommitted, stashed etc., if I’m in a directory with Git repo
• the toolchain in the repo that I’m in

I also use light theme in the terminal. Sue me. 🙃