That drives me up a wall that Gibson USA leaves the frets shaped that way. My 2019 Traditional has that shape and I’ve never liked it. My Standard 50s had it too, but not long after purchasing it, I took it to get Pleked (or REpleked, as the case may be) at Mike Lull guitars in Seattle and dang....it plays like glass! So smooth.In therms of measurements my 60th Anniversary R9 and my Standard ‘50s have dead on equal height and width. The difference is in the shape. More precisely, how much roundedness is in the tradition from the side walls of the fret to the top of the fret. The R9 has a much smother/rounder transition from side walls to the to of the fret. The Gibson USA frets look almost like a trapezoid with dull edges in comparison.
Kind of an inverted \_/