Just to make google searches for this a bit more helpful, some experimentation later seems to link these random boot crashes to the i2c bus going funky when a bunch of stuff tries to hit it all at once during boot: https://bugzilla.kernel.org/show_bug.cgi?id=105251

Doing a weird workaround involving delaying loading hid_multitouch seems to cut down the boot failures by a fair amount: https://bugzilla.redhat.com/show_bug.cgi?id=1297188#c13
(NOTE: Still seem to happen a fair amount, did some statistical testing but still might be the placebo effect.)