moonlight-ios VS Internet-Hosting-Tool

Biggest issue with AppleTV is no USB. I use an Xbox Wireless Adapter for 8 Xbox controllers. Can't do that on AppleTV, and it doesn't handle 4 bluetooth controllers at once all that well. If you don't care about those ksshes, yes the Apple TV will work great. Personally I use a Mac Mini M2 Pro because I want 4k/120Hz on my primary screen. Previously used Nvidia Shield Pro at 4k/60Hz, which also worked great. On a second TV, which is usually used by 1-2 people at once, use an AppleTV. Works great. Also you need to use the [::ffff:x.x.x] or Zerotier workaround on tvOS if the host is outside your network.

Next, the App Store has a limitation, so you need to use a workaround to add your streaming PC.

I think this is the iOS limitation issue.

This is unlikely to fix it. I would suggest opening a ticket on GitHub. They are pretty quick with their response and would help you diagnose it properly. But I can tell you that my 5.1 surround worked perfectly on my end; it wasn't stereo whatsoever. But this might be conformation bias on my end because rarely do I use my speakers, as I only play at night after coming back from work and 90% of my play is with my Airpods Pro plugged in.

Moonlight-ios

I might be misunderstanding something, but isn’t this what you’re looking for?

Oh! That reminds me. If you want to stream to your Steam Deck across networks, you'll need the Moonlight Internet Hosting Tool which is very straightforward.

To ba able to stream via internet https://github.com/moonlight-stream/Internet-Hosting-Tool/releases I have AMD GPU so no luck for me. I use Sunshine on LAN only. So I use parsec if I want to connect remotely.

Moonlight has an Internet Streaming tool download that allows you to game from outside your home network.

Try this maybe