I hope that I’m posting in the right place. I am running Lineage OS 17.1 on a Pixel 4XL and I am experiencing a flickering wherein the background color changes from the darker version to a lighter version and back again. This is especially noticeable with the dark theme and apparently it is a known issue (https://www.reddit.com/r/Android/comments/hnkmln/android_11_beta_2_now_available/fxc1l7p/, Android 11 adds option to show refresh rate, looks like Fraps, Android 11 adds option to show refresh rate, looks like Fraps). My problem is that I cannot find any of the 90Hz or “Smooth Refresh” options anymore. But, I know that they were there before I installed Lineage OS 17.1. Any help is greatly appreciated.