you have too check out the donations wall...
Since the pandemic started you can't drink alcohol on planes, at least in the US (I realize this was happening overseas but I suspect that rule is not just the US). I've heard a flight attendant say it's a $10K fine for drinking on a plane now but I don't have confirmation/sources on that, I just know all US flights include a no alcohol announcement since the start of the pandemic. Vaping is also illegal on planes, having nothing to do with the pandemic, for the same reason as smoking (shared air space).
It wasn't a commercial flight. It was a charted, private flight. What they are or not allowed to do ultimately would come down to the service provider... If the service provider was OK with it, they could actually do all of those things.