As discussed in #502 (comment):

This PR covers too many different things, so it would be better to split it to be able to take some things while not taking others.

Specifically, I would take the changes in the Click examples from "some str {blah}".format(blah=blah) to f-strings. That was just an exact copy of Click's tutorials, but now they updated them, we can update them here as well.

Thanks to @marksmayo for originally catching these cases 🙏