Sister asset of my UI Toolkit Blurred Image asset. This one is for UGUI and it supports ALL render pipelines: URP, HDRP, Built-In aaaand URP 2D (with some caveats).
Link (with affiliate id): https://assetstore.unity.com/packages...
Link (without): https://assetstore.unity.com/packages...
Manual: https://kamgam.com/unity/UGUIBlurredB...