In reply to @elvishjerricco:matrix.org
Hm yea according to https://github.com/systemd/systemd/issues/4699, it sounds like the udev rule is all that's expected to be needed

So it seems the issue happens when fb0 switches from efifb to i915drmfb, which resets the fbcon on vtcon0 (presumably indicated by the log item kernel: Console: switching to colour frame buffer device 282x94). So depending on what events trigger the "change" event for vtconsoles, setting that udev rule could cause later setfonts to be overriden by the default vconsole settings

I'm trying a few kernel params to attempt to prevent the switches during initrd for further testing in confirming the cause

So it seems the issue happens when fb0 switches from efifb to i915drmfb, which resets the fbcon on vtcon0 (presumably indicated by the log item kernel: Console: switching to colour frame buffer device 282x94). So depending on what events trigger the "change" event for vtconsoles, setting that udev rule with ACTION="add|change" could cause later setfonts to be overriden by the default vconsole settings

I'm trying a few kernel params to attempt to prevent the switches during initrd for further testing in confirming the cause