i'm no expert in display manufacturing, but as per my understanding driving higher refresh rate is much different challenge than creating more densly packed pix

i'm no expert in display manufacturing, but as per my understanding driving higher refresh rate is much different challenge than creating more densly packed pixels. display overclocking has been a thing for the longest time, which also implied that getting more refreshes is often a product of display controller and how reliably your display can work in higher voltage. getting high yield on larger displays with high ppi is still tricky iirc, especially when some 1080p displays can still come with dead pixels. i am sure companies would push for higher pixel count displays if economics were rightly aligned.