i'm with you! i do not understand why this is not the standard with today's keyboards.
the only boards i have with F-keys on the left are 30+ years old..
it's way nicer for me to have all the F-keys clustered together like that. i move my hand a tiny bit to the left, and all keys are within reach. i don't even have to look! : )
what i'd also like to see is a TKL where the whole arrow- and navigation section is located on the left side of the board.
with so many gamers today, and the majority being right-handed, it makes more sense to me to put that whole section on the left side.