Yeah I'd assume he's vaccinated. Given that plus what we know about his health and wealth, he should be in a good starting position, so I'd hope the worst case scenario is super unlikely. Still, fingers crossed.

Meet & greets and especially cruise trip shenanigans (which AFAIK this one wasn't) are just a bad idea at the present time, but after almost two years without regular touring, the money might have been too welcome to turn them down.