T-72 tank. Both Russia and Ukraine have them. The video is obviously taken from an aircraft--probably a Russian observation drone.
Educated guess, it's a Ukranian tank that realizes that it's been spotted by the drone and the crew is bailing out before the artillery starts.
Educated guess!!
Indeed!
Hilarious.
It would be unusual for a Russian tank crew to allow itself to get isolated. Ukraine tank crew,...not so much. Ukraine doesn't have nearly as many tanks as Russia. They would probably get called on to operate independently on occasion,..resulting in a situation as shown on the video.