Noob questions about mixed reality

Hey there, glad to see you're excited to make stuff in Unity! There are a lot of tutorials out there and I agree sometimes they're hard to spot. Microsoft has a really neat beginner series on basic Holographic development, you can find that here: https://developer.microsoft.com/en-us/windows/mixed-reality/academy

And for commonly used mechanics, on GitHub, there is a pretty neat project going called Mixed Reality Toolkit ("MRTK") https://github.com/Microsoft/MixedRealityToolkit-Unity. Bear in mind, this project is not supported by Unity in any way, so any questions about their implementation is better asked on their GitHub page. But a lot of our users seem to find value in that project.

And lastly, you can always use Unity's documentation site which has information on all the API's you could ever need. Find that here: https://docs.unity3d.com/2018.1/Documentation/Manual/. And note, select the version of documentation that corresponds with your Unity release you're developing in so you get accurate information. This URL takes you to the 2018.1 documentation for example.

As for following Oculus tutorials, I think your mileage may vary in doing that. I can't think of any huge red flags, but tutorials that require packages for Oculus will likely not port as0-is. I would just warn you that following them might require some deviation from the steps to get the intended behavior in WMR. The good news for you in that Windows Immersive apps will work on both your Mixed Reality headsets and Hololens quite easily going between those two. Microsoft provides tools to emulate the Hololens and Unity allows you to simulate in the editor as well.