I’ve never had the need for type f. My transmissions have always shifter great with dextron. I guess 50 years ago f would firm up shifts or something. These days there’s no need for it in my opinion.
It did and it will. Next time you are in an O'Reilly, grab a bottle of B&M Trick Shift off the "performance" shelf where all the MR Gasket stuff is and read the back of it. It says something like "meets Type F specifications" or some such. That's all it is, is type F. LOL