It's bug 1755435 and :calixste had a patch in bug 1811303. Hi Calixste, do you intend to submit https://bugzilla.mozilla.org/show_bug.cgi?id=1811303#c11 as a patch? Thanks!
Bug 1806973 Comment 19 Edit History
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It's bug 1755435 and :calixste had a patch in bug 1811303. Hi Calixste, do you intend to submit https://bugzilla.mozilla.org/show_bug.cgi?id=1811303#c11 as a patch? Thanks! (Perhaps the pen flags should only be checked when `dom.w3c_pointer_events.scroll_by_pen.enabled` is true)