Vivo does not release kernel sources fully, so official maintainers avoid it. GSIs are your best bet.
: You typically need TWRP (Team Win Recovery Project) installed to flash ROM zip files. vivo u10 custom rom link
have an unlocked bootloader, which is the hardest part of the process for Vivo users. Treble Check: Treble Info app Vivo does not release kernel sources fully, so