Just grabbed the lastest 8.2.2 snapshot from github actions to test it- I have had a couple problems with input on 8.2.2 that I have not had in fossapup64 or dpup.
1. I cannot do trackpoint scrolling. Usually, when I hold middle-click, I can use my thinkpad's trackpoint to scroll up/down/left/right. I'm not sure whether slacko is using libinput for evdev, but arch linux says this should be on by default with libinput but has some configuration settings to use for evdev https://wiki.archlinux.org/title/TrackP ... ton_scroll.
Something I did notice is that in slacko xinput, the trackpoint just shows up as "Mouse0". On fossapup64 it displays as "TPPS/2 IBM TrackPoint". So maybe that is a hint for what is going on here.
2. When I set my keyboard layout to the workman variant, it breaks a lot of my keys like pgup/pgdown/arrow keys so that they just dont do anything. I checked and my keyboard model is set to the right model (any of the generic models work). And they work in normal QWERTY. Very strange thing I am not sure how to debug.