Hello.
On the bottom of the page Depth of Field in Unreal Engine | Unreal Engine 5.2 Documentation
there are pictures, after phrase In general, you want this to display all green. The more red shown by the visualization, the more expensive the scene is to render each frame. .
On that pictures two typos - “Adaptive Re os ution - Expensive” and “Adaptive Re os lution - Optimized”