[GSI] Q-GSI - Custom Build from 28.11.2020

Have a look at this page, Device support (Project Treble)

Depending on which cell phone you have you need the A or A/B version.
With a Xiaomi Redmi Note 9pro it would be the A/B version, as a file it would be
eOS-Q-20201128-UNOFFICIAL-treble_arm64_bvS.img.xz

You need only ONE file.