Thank you for the feedback, Eric FFG.
The Custom Lighting Sample, (also new in Shader Graph in Unity 6.3) provides examples of how you can incorporate customized SSAO into your shader.
In order to customize the way that SSAO works, we’ve added a new check box in the Graph Inspector for the Unlit subtarget. It’s called “Default SSAO.” Unchecking the box turns off SSAO for the Unlit shader so that it’s no longer calculated under the hood. This means that you can sample the SSAO yourself in the graph and then customize its contribution to the lighting model. The Custom Lighting Sample provides a subgraph called Screen Space Ambient Occlusion that does just that - so you can add that subgraph to your graph and use its output however you’d like.
Hope that helps!