Flashed the entire bundle of
https://wiki.lineageos.org/devices/alioth/fw_update/variant1 > EEA (because that's what it came with).
Now I can't finish the adding of a fingerprint, because it's "Timed out". Now going to do a few reboots to see if it helps. If not, I'll try the GLOBAL bundle.
-edit- After another reboot the fingerprint got accepted. Another reboot, and the fingerprint didn't dissappear. So it's working now.
So even if you're on the correct firmware, you should flash the firmware mentioned (it will not reset or wipe the device). Seems like it's not an optional step, at least not on my EEA device.
Still struggling with the Gallery being completely random, not chronological... And the camera app is not able to use the full potential of the main lens (48MP) and it's not able to use the other two lenses.