So here’s an inconsequential discussion - on a 65% layout, there is typically a column of two-four “extra keys” adjacent to the main cluster. What are your personal preferences in utilizing these “extra keys”?
On my NK65, I have that column mapped to volume up, volume down, play/pause, and screenshot. If the keycap set supports it, I like to have page up and page down on the top two slots (to further support the mental model) and usually whichever R3 and R4 keycaps I can find for the bottom two.