I’m running Fedora Kinoite 40, having switched over from Onyx through a rebase. On Onyx I was using X11, which worked just fine. Kinoite instead uses Wayland by default, which causes some issues with the scroll wheel. On most apps it works fine, however on Firefox (using Wayland directly) it seems to skip every third scroll. I have attached a screenshot below, on the top is the output of libinput debug-events and on the bottom is the output of wev. As you can see from the libinput output, I...
This was happening to me on X11 when Plasma 6 released. It got fixed on the next patch.