HiDPI is mostly fine, with the exception of mixing high dpi in xorg. Mixing DPI works in wayland. So I'll grant you that the combination of nvidia+mixing DPI doesn't work, because nvidia's drivers don't support wayland.
Otherwise I strongly disagree, and I'm genuinely confused as to why this myth persists. Wrangling drivers on windows is a huge pain. There's no one "update" button I can press to update all my drivers, let alone all my other software. I have to go through the driver manager and manually right click and select "update driver" which frankly nuts. And to update the graphics card I have to periodically go to nvidia's website and check manually? What year is it again? Why doesn't Windows do this for me?