RockyMtHigh
RockyMtHigh the quality is certainly not better streaming. Downloads will always be clearer.
Not necessary, if the stream gives you the exact same file as you can download quality will obviously be identical.
Besides you can also download to your quest and play the file local on your Quest 2.
In any case Air link will always lead to at least a slight reduction in quality, as the video is decoded on the PC and then the resulting image is lossy encoded and sent to your quest over your WLAN, which always leads to a quality loss.