hires wheel scrolling on MX Master 3 causing scroll twitching
So, it is not really a bug in libinput per se, however it is an issue that is immediately noticeable with libinput 1.19.
Logitech MX Master 3 supports hires wheel scrolling and it works. You can turn off stepped scrolling via switch on the mouse and get that smooth movement.
But when you lock mouse movement and scroll with "steps", you see noticeable twitching because mouse issues small movements when you jiggle wheel a little. It is especially annoying when you scroll down, then release pressure from wheel. In that case wheel will slightly move back.
I am attaching example where I scroll in Firefox. But it is the same thing for other apps.