Headphones play audio on everything but my Xbox.

My windows default output is set to
"Headphones (Realtek(R) audio)"

Also I tried streaming again and now there is no audio at all, However, everything else still works

Are you playing on a Xbox console?

If so, go to the audio settings in the console settings and set up the console audio to output game audio via headset.

In the headphone settings you can also set up spatial 3D audio, by turning the audio output for headphones to Windows Sonic, or if you have purchased the Atmos App (the free app only works 14 days with headphones), you can also set Dolby Atmos for headphones.

If you are on the PC, you need to make the headphone your device for audio output (not only voice communications).

Click on the speaker icon in the lower right, and choose the output channel for the headphone. Depending on your soundcard or USB headset, you need to select the proper audio output.

I have a USB adopter for my headphones.

I used this USB adopter connected to my headphones plugged into my USB port on my Xbox One X.

The USB port does not recognize my device. Another account has replied to your question with this information.

Their is an audio port on the Xbox controllers, this port is designed for input / output audio.

I use a microphone plugged into my headphones, sometimes.

I tried the USB port, no Audio category was displayed on my Dashboard UI on the Profile & system section.

I have heard and agree that USB transfers audio, as a higher quality compared to the microphone / headphones cable-prong.

I have no sound at all in my headphone. only when im long pressing a button on the adapter for my headphones. and im using the xbox stereo headset.

The audio setting is set to windows sonic for headphones.

Actually they are all pretty bad including my latest purchase, the Astro A40's. The Dolby Headphone audio processors included are fine. Its the headphones themselves that underperform vs even cheap models of "real" audio headphones.