I love F-strings, my only gripe is the chosen syntax for invoking them. For starters, F may or may not be capitalized, so these two lines are identical.

  F"My string with {interpolated_value}"
  f'My string with {interpolated_value}'

Like using apostrophes or quotation marks to enclose strings (or F-strings), I find myself wasting time questioning the trivial notion of whether to capitalize or not.

I think Groovy's syntax is great, where quotation marks denote an interpolated string, and apostrophes denote a plain old string.

  "This is my ${interpolated_value} string"
  'This is my plain old string'

But these are nitpicks, and it's really too late to implement something like that.