I saw this posted in the UFO subreddit earlier when the photos of that glowing plane thing showed up. Newest NJ submissions are also saying one looks like a plane flying sideways on its wings though, like left/right instead of front to back. Very similar to this, maybe it's our tech and we're testing international responses or flexing as a show of force? Either it's all scary and unknown and we're getting invaded (alien or china/russia) or it's ours and we know it, hence the "not a threat" stuff we keep being told is real. Unknown until proven but it's interesting either way I guess.

https://www.nasa.gov/general/silent-and-efficient-supersonic-bi-directional-flying-wing/