Proper viewing order for the Fate series?

I would watch them in order of release date.

Fate/Zero is the prequel story that has 3 branches: Fate/Stay Night, Fate/Stay Night: Unlimited Blade Works, and Fate/Stay Night: Heaven's Feel (Movie)
Fate/Apocrypha is an alternate timeline to Fate/Zero
I'm not sure about Fate/Grand Order and haven't seen it yet. I heard it has some time travel in it so it could be anywhere.