I’m using 2021.3.20f1
Create Project using 3D URP Template, Renderer in Camera is not changed other renderers.
As you know, Create 3D URP Template project, it create 3 differenct URP Assets. default, it set URP-HighFidelity.
If i changed to URP-Performant in Graphics settings. or add Renderer in URP Asset for testing, it is not updated in Camera Rendering->Renderer Inspector.
It isn’t appears if Add URP package in Built-in Project and change from Built-in to URP case.
Just Create 3D URP project using Template → change Graphics settings to Others (URP-Performant, or create your own URP Asset) → try to change or checked it changed Renderer in Camera inspector