I think they just mean ‘not 4k’, which is overkill for most use cases.

The 1440p suite includes a 3:2 resolution at 2160x1440.

I hate that you can either get 4k or 1080p/1440p in laptops.

4k is a bit much, but 1440p is too low. 3k or similar would make much more sense.

Sorry I should have said 1080p+. I do not have the 1080p equivalent of the 3:2 ratio on the tip of my tongue

Does 1920x1280 sound right to you?

Sample (not affiliated)

> Microsoft Surface 3 10.8 FHD (1920x1280) Touchscreen 2-in-1 Education and Business Laptop Tablet (Intel Quad-Core Atom x7-Z8700, 4GB RAM, 64GB SSD) Mini DP, WiFi AC, Webcam, Windows 10 Pro (Renewed)

https://www.amazon.com/Microsoft-1920x1280-Touchscreen-Educa...

This is the mistake in nomenclature (1080p) using the height-value instead of the width-value.

It should really look like this (but it doesn't):

HD - 1280p

FullHD - 1920p

WQHD/2K - 2560p

4K - 3840p

1620x1080 would be 3:2 and 1080p (assuming it's not interlaced, of course). That's not a standard resolution, but there's no reason you couldn't make a display with that resolution.