No, I just followed what used to work before with Magisk. My goal is to, if possible, go forward without having to wipe.
Right now I am back with stock boot.img, phone is running fine (but without root).
If I understand you correctly, I should:
fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img
Is my understanding correct that this disables verifications for any subsequent images I flash (and me not having done it is why it failed for me)? How do I avoid getting to a corrupt state and having to wipe (what the other dude mentioned)?
At this point, would I be able to boot with the patched boot.img from before?
If yes, will I then be able to do a direct install of Magisk?
If no, do I need to re-patch boot.img after the procedure with vbmeta.img?