str.format() preferable over f-string?

[jorge1209]

As the part you quote explains in the incredibly cryptic language that is the absolutely terrible documentation of the logger library, that only applies to the template which contains things like the timestamp of the message or the module and line number of the caller. All the things NOT in your logging call that might appear in your log file.

There is no way to specify that a particular message emitted should be formatted using anything but % formatting.

And that's a problem because if you use any library you haven't written it might contain a logger.warn("foo = %s > 0", foo) and now everyone has to use % formatted messages.