And here is the blog-post on getting pixel-perfect scrolling working under Linux with a Logitech M720 mouse
https://blog.like-a-fin.lol/Pixel-Perfect-Scrolling-With-a-Mouse-Wheel-Under-Linux
Pixel-Perfect Scrolling With a Mouse Wheel Under Linux
Yesterday, I plugged in my Logitech mouse into my laptop and started reading a PDF file. I started scrolling the page and realized that the scrolling is not as smooth as with my touchpad. The difference is that the touchpad scrolls the PDF pixel-by-pixel, whereas my mouse scrolls the PDF with one scroll-wheel click roughly 3 lines at once.

