with RTSP
with motionjpeg
for USB
register for this site.
https://theta360.guide/special/linuxstreaming/
The Raspberry Pi cannot display the H.264 4K stream to the monitor connected to the Pi. you must use either a Jetson Nano or restream from the raspberry pi.
On a Linux computer (not raspberry pi right now) use this modified version of libuvc
You can then use this sample application to get it to the screen (not ona Raspberry Pi)
To get the video stream to a video device such as /dev/video0, you need to use this.
For short distances, you can use the motionjpeg from the THETA V.
example of using mjpeg over wifi with OpenCV, which may be what you want.
Flutter example of displaying the stream with navigation using panorama_viewer.