The original video came from Telegram and it ended up on Twitter.
A subscriber asked me if it was common for APCs to perform a “dance” like this. It’s not, but it could be that the vehicles are getting close to the objective - just out of range of the adversary RPG range, shooting until their ammunition belts are dry, and backing up to be replaced by other APCs who just reloaded their machine gun belts.
Why are These Ukrainian M113 APCs Having a Dance Party?