Sure, aside from Forza Motorsport 7 which turns in a flawless 4K 60FPS on X. Point being there are a number of, mainly first party games, which do the exact opposite of what you claim. Besides which the PS4 Pro was never designed to run games at native 4K, which is why so much emphasis was put on chequerboard techniques and the extra hardware that was included on the GPU to help facilitate this.
Consoles are way more efficient than PC's and the hardware in PS5 will be a massive leap over that of the current base consoles. I foresee plenty of native 4K titles at a range of framerates, don't forget that the PS5 will almost certainly feature adaptive sync given it appears to have an HDMI 2.1 output for support of 8K. I'm sure there will be plenty of games which continue to use chequerboarding as well.
I'm most excited about compatability with PSVR and any future headsets they may bring out. Can you imagine an enhanced version of GT Sport with VR support throughout