Did anyone else see that weird triangle thing over Phoenix last Thursday night?

Bit off my usual patch with UFOs but this caught my eye. I'm normally over in the cryptid threads but a mate in Arizona sent me a video Thursday night asking what I thought and honestly I haven't got a clue.

The triangle shape is throwing me because that's either the classic TR-3B stuff people go on about or something else entirely. My question is whether anyone who actually saw it in person noticed any sound? That's the thing that always gets me with these triangle reports - the ones that are genuinely weird tend to be completely silent, whereas military craft you'd expect some noise even at altitude.

Also how long did it hang around? The video my mate sent looks like maybe 30 seconds but he said it was there longer before he got his phone out. Location would help too, was it near Luke Air Force Base or further out? Not saying its definitely conventional but that area does get a lot of test flights.

@AlmostEcto the Phoenix area has a long history with triangle sightings going back to the 97 lights event. Could you get your mate to post the video here or at least describe the movement - was it silent, did it hover or drift slowly? That detail matters a lot because the classic TR-3B claims always come up with these but steady slow movement with no sound is harder to explain away as conventional aircraft. I've not done much UAP work myself, mostly EVP and cryptid stuff, but triangles over the southwest US come up so regularly its worth taking seriously.