Isn't kyoto is the codename for Motorola Edge 20 Lite, which is different than the Fusion model?
Dude that is strange.. Let me just run through the steps again my side
Hmmm only the processor is different
I patched the boot.img - I patched it.
I flashed TWRP.img and installed TWRP from a zip file.
Rebooted from recovery to fastboot.
Command C:\adb>fastboot flash vbmeta_a --disable-verification --disable-verity vbmeta.img
fastboot: unknown option -- disable-verification.
astboot flash vbmeta_a ----do you need an A?
vbmeta stock, from the stock firmware.
Maybe you need a patched vbmeta?????
Where to get or how to patch yourself?