Dust orbs in video recording or something else

Okay, my mother was video recording my little siblings on her mobile phone (with flash) singing Christmas carols. As we watched it back, we see these orb things that'll zoom past, and some disappear once it's 'touched' someone. I'm thinking it could be dust, but they go by fast, and some in different directions. We took more videos and there's orbs in all of them. The flash is constantly on whilst videoing, and I know no one was wearing jewellery or anything like that - as I know it can affect the picture to create orbs.

I record videos on my phone all the time, with flash like you said, and when I'm looking at the screen you can already see dust particles swirling around the room. It is DUST nothing else. Maybe it's because I don't really believe in orbs, but I do believe in ghosts. What you're describing here is just dust. Take another video, and while still recording in realtime look at the screen as you're recording and you can see dust that is too close to the lens and the flash just illuminates them. No orbs here.

Dust, yes. Dust reflects light in a very narrow area for a very short period of time. You will not notice this because dust doesnt get that close to your eyes without you closing them, and you cant playback your memories frame by frame. The light reflects off the dust, creating an illusory orb shape. The dust is too small to be preceived normally, so you just see the roughly spherical shape of light propagation.

You do, in reality, see this happening infront of you, but you cant remember: Its useless sensory information which is discarded permanently in a second or two at best. The same mechanism where you can look at a flower, and know how many petals it had, but then you cant remember how many there were, just that you saw them. You do this all the time, we all do.

Cameras tend to lie, since they see the world in a way far different than we do.

Stray reflections in the lens - nothing more than that

Uh oh! my point of view is not dust and it can't be flash flare also, So might be entities around!