If you want the best version of Oppenheimer, you are going to want the 4k Blu-ray.

Lossless audio is better than what steaming can provide, even vs Atmos (which this doesn’t have).

The other main factor for this movie in particular is the aspect ratios. Streaming only provides one aspect ratio, while this Blueray will switch aspect ratios to be more in line with the IMax filmed scenes.

I’m not here to shit on streaming vs 4k Blu-ray in general (which many will do), but Christopher Nolan movies are purposefully made better on the disc beyond the normal comparison would be.

Edit: this is assuming you have a good home theater setup to take advantage of what physical media offers

What do you mean the Apple TV doesn’t support pass through? The Apple TV will be the source of the audio. There’s nothing for it to pass though.

I’d be interested in how this turns out. I have a 5.2.2 but I don’t feel like I get much from my up firing speakers. I wonder if I’d be happier with a 7.2 setup.