It essentially allows for special closed source builds. These closed source builds can have the engine support for consoles and still be in keeping with Sony/Microsoft/Nintendo’s licenses.
I didn’t know that. How do the developers get access to these builds? Are they sold? Or do they need to build it themselves?
So, basically the console manufacturer gives you the SDK, integration code, etc after you sign their NDAs. After that, you can either use what they gave you to port it yourself to that console, or you can pay someone else for their build.
https://docs.godotengine.org/en/3.2/tutorials/platform/consoles.html