We're talking 11-13" screens - I like big fonts - but you can set the zoom lower to get more screen estate if your eyesight is better...
1280x720 effective! You really have got the best of both worlds..
Yes native resolution is 2560x1440. Yes effective screen estate is 1280x720 - but fonts, bitmaps, etc. render at the native resolution so they are very sharp just as on phones and tablets. There is no "scaled resolution" except for legacy apps not aware of high DPI. I'm not sure what you mean "no need to scale" we need to move away from 1:1 we've had so long and think in "effective pixels" not "native pixels" - that's the only way you're going to get the same sharpness as on modern phones/tablets. It is ridiculous to have far higher DPI on phones/tablets than laptops or monitors - at effective distance (i.e. accounting for use distance to screen).
So is the native resolution 2560x1440 or the effective scaled resolution? If the latter then what is the effective scaled resolution? 1280x720! With Apple 4K scaled would give you an effective working resolution of 1920x1080 I think. Personally at this price I'd rather a larger screen with 2560x1440 that I wouldn't need to scale. I'd like to see this style of monitor to see how it compares with my U2413 which is 24" 1920x1200 and is factory calibrated and also supports the full Adobe RGB colour space. Even though this doesn't offer Premium Colour support as I tend not to use the Adobe RGB pre-set this may well look better albeit lacking the 1200P when scaled. So many choices these days.
I have 1 laptop and 1 tablet at 200% (2600x1440) and have no scaling trouble with any apps I am using. The sharpness is incredible.