@Andrew-Perpetua
I’ve used it without issues on 1440p for quite a while. Unfortunately, I now have a 4k monitor (2160p) and the text is very significantly harder to read on it. Your 1800p is exactly halfway between a 1440p and a 2160p, and it appears fine. So it leads me to believe somewhere between 1800 and 2160 it gets more difficult.
the windows scaling factor is independent of the physical resolution.
a higher resolution will only permit you to see a larger area at the same scaling factor.
the rendering stays the same, albeit your optical reception will depend on the pixel density, compared to your previous display.
e.g. if your past display was 27" with a resolution of 2560x1440, the most probable visual satisfaction, for all previously used applications, would be achieved with a same size 27" screen, with four times the original resolution, which would be 5120×2880.
so yes, you are absolutely correct, that the most pragmatic, cost effective, and most logical option, is to find other software that isn’t impossible to read.
many thanks and best regards.