Cube like UFO flying at high altitude captured by Pilot Viva Air

What are these objects flying at hypersonic speed and the ability to fly with no obvious wings, tail or exhaust. Text source: Video upload to TikTok by a commercial pilot / captain A320 for Viva Air: @cesarinmp/video/6785921462571126021 Stabilized segment by “GetOnThisPlanet“: Read here: