I mentioned this in the other thread, but it bears repeating here.
2X is not the default scaling the vast majority of Apple's laptops sold in the last 5 years. And almost nobody complained. In fact, almost nobody even discussed it. They just accepted it because it looked good.
So yeah, there are always edge cases like yours, but for the mainstream, your experience doesn't necessarily apply.
We already discussed this in the other thread. The fact that you repeatedly suggested that macOS Retina only works properly with 2X scaling was rather telling, despite the fact that even Apple's own product settings disagreed with your claims.
And I'll repeat again, in usual computing parlance, resolution ≠ pixel density.
I think by chance (because I wasn't aware they were doing that until recently) the laptops I've owned since they went Retina were all at 2x scaling in their default "native" mode. And in addition laptop screens, at least from Apple, have an even higher PPI anyway than their desktop displays, so that may be helping to minimise the problem even in the cases where they are using non-2x scaling.
MacBook Air 2019, 2560x1600 227ppi
MacBook Pro 13" 2015 2560x1600 227ppi
MacBook 12" 2015 2304x1440 226ppi
I'm not certain about the default mode of the 12" MacBook, but I'm pretty sure the others were a default "Looks like 1280x800" screen mode.
the Dell XPS13 I got during the period Apple were making crap MacBook Pros... was crazy, 4K at 13". I would run Windows and Linux on that at 300% so it would even be readable. In fact, that made it also a "Looks like 1280x720" screen mode. People have been saying that Windows tends to look better on those 4K screen at "looks like 1440p" where they're actually running at a scale factor of 150%. It's true. Windows does that, Linux does that (under Gnome with Wayland at least), whereas macOS absolutely does only render at 200% and scales down the bitmap if it needs to. One way you can tell is to take a full-screen screenshot while running a "looks like 1440p" mode on a 4K monitor. You'll get a 5K screenshot.
That downscaling it does does not look as good as it would if the text was rendered directly to the final scale factor. It's a macOS problem. The flip side is that it works consistently, whereas both Windows and Linux are plagued (gradually less so over time) with the occasional blurry app that doesn't support the scaling properly so is having to be scaled
up to fit by the OS. (Or as often as not on Linux isn't scaled at all, but shows up with tiny unreadable text and UI.)