The way I parsed your earlier comment was that the solution to making a resolution like 4k usable on a laptop was just to lower your resolution.
My point is that if instead of lowering your resolution, meaning you're not utilizing the full potential of your screen, you can instead use UI scaling to make the resolution usable while still benefiting from the higher resolution in terms of sharpness in text, games etc.
And waste all those pixels? Scaling let's you keep the sharpness while also getting reasonably sized ui
More sharpness than you have pixels?
I didn't downvote you
The way I parsed your earlier comment was that the solution to making a resolution like 4k usable on a laptop was just to lower your resolution. My point is that if instead of lowering your resolution, meaning you're not utilizing the full potential of your screen, you can instead use UI scaling to make the resolution usable while still benefiting from the higher resolution in terms of sharpness in text, games etc.