I'm at the same stage [Login to see the link] is, except I own a F119 variant, and just tried reflashing it with kazuna's fw from their update endpoint.
The phone "is there" aka, if you manage to skip setup wizard and all that fuss, the underlying is working, it looks like they might have botched something in the file they are serving (or QFIL is doing some kind of damage) kernel wise, because to me, it just looks like a bad display driver.
If anyone has a F119 dump, even just boot.img only, I'd be grateful