Nothing will have changed in the month since you tried, but what resolution were you previously running at? Assuming you're talking about an M series MacBook, it should look sharp/clear at 3840x2160 (ie. native) and 1920x1080 (HiDPI). But the issue is usually that the first is too small to read, and the second is too big.
I had the problem with a 1440p screen. Native 2560x1440 is nice and clear but too small to comfortably read. The only HiDPI option I get is 1280x720, which again is nice and clear but the amount of screen space you now have is horrible. Picking any of the other non-HiDPI resolution options look terrible and blurry, like you'd expect when running at a non-native resolution.
I've just tried this BetterDisplay app and it seems to be a game changer. I can now pick from a variety of HiDPI resolutions up to 2048x1152. Relative to Windows the text is not perfectly sharp, but it's a substantial improvement over the standard choices as I now have much more acceptable screen real estate available while retaining (at least for me) good enough image sharpness.