MouthBQ98 said:
I'd tend to think in that proximity, both aircraft were Russian, or the airspace is very chaotic and the pilots on both sides fairly unpracticed.
this was my thought too. both on the same side flying as a pair. because if they are in an engagement, that low flyer looks like he is about to have the higher/slower jet drop in on his tail. all hard to tell though due to the angle we see it from, the video quality, and the short duration of the clip.
i will offer the disclaimer that all of my "experience" with air-to-air engagements and aircraft identification is from DCS, so i'm more than happy to be corrected and learn something if anyone has better info.