Earlier quoted context omitted.
I am amazed people consider 1440p low resolution. My knee-jerk reaction was to assume you were sarcastic. I use a monitor of roughly that many lines of pixels and have never had observed blurry text in the tools I use (and I use fairly small fonts).
Are you using enlarged text or native 1440p? If the latter, have you used 4k or retina displays in the past? It’s hard to go back after that.
I have used retina displays of various sizes -- but after a while I just set them down to half their resolution usually (i.e. I do not use the 200% scaling from the OS, rather set them to be 1440p (or lower on 13inch laptops)). I have not seen an advantage to retina displays.