The problem with those old monochrome/greyscale LCDs is that they were horrendous for ghosting.
I imagine if you just wanted an old laptop for wordstar or something, they’d be amazing due to their clarity; but I remember trying to play commander keen on them and getting a headache.
Thanks for the flashback! Got my first own computer from my grandfather. It was a 486 laptop with a bulitin trackball and floppy drive. The display was as you described. Movement on the screen was just a blurry mess.