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> In X11/synaptics I can make movements as fine as rolling my fingertip in place on the touchpad, or drawing a minuscule circle, and it will pick it up. Libinput on the same touchpad does nothing

Just tried that on my Dell XPS on sway (wayland, thus libinput), and rolling the tip of my finger on the touchpad allows me to move the cursor in single-pixel increments on an unscaled 4k display. :/

Maybe this is a libinput issue specific to your touchpad type?

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Lots of touchpads (most, I believe) trigger hysteresis in libinput unnecessarily, either because of a declared fuzz value by the touchpad or because of the broken heuristic, and it's mushy afterwards. But no, it's not all.

Agreed. Libinput on an XPS, having no issues over here. I actually prefer it to my past MBP's from 10 years. Tested on the 2015, 2017, and 2019 models and libinput/XPS is much nicer to use.

100% agree with you. I have XPS 15 (9570) and I use libinput on sway. I have dual boot with W10 and I'm always amazed how much better the touchpad feels on linux.

Sure windows has better gesture support but I've always felt them sluggish and controlling sway through the keyboard is lightning fast so I really have not missed gestures much. However for browser etc 2-finger swipe to go back would be nice to see

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