We are currently using URP and Unity 2020.3.7f1. When we test on Pixel 3 XL (Android 12) after updating to 2021.3.0f1, we get a stuttering framerate most of the time when panning a screen using touch controls, and scrolling scroll views. The stuttering has a consistent cycle but the phase is different each time we run/reinstall the app. most of the time it is easily perceivable. Rarely do we run the app and it does not exhibit the stuttering framerate. I am guessing the vsync is out of sync with Unity update.
Is this a known issue that @ is working on, or is there some other thing I need to modify / improve / update in the app to eliminate this stuttering introduced with 2021.3?