and the jet blast from the smaller A320 pushes the bigger 767 back.

It would be interested to hear what CB pilots think about this - my understanding is in the US, only the plane that is cleared for takeoff/landing is allowed to be on the runway, but apparently at Heathrow they will often line up multiple planes to enable shorter takeoff windows. But I would think this is a risk to the plane behind that is catching the force of all that jet blast.

https://twitter.com/airwaysmagazine/status/1903851605708968375