Patch 9.1 has been added to the background downloader!
Nvidia Driver 471.11 – Shadowlands Flickering Fix
Nvidia has released GeForce Game Ready Driver 471.11, which includes a fix to the random flickering happening in Shadowlands and other locations in the game.
Fixed Issues in this Release
[World of Warcraft: Shadowlands]: Random flicker may occur in certain locations in the game