The bg is indeed out of focus and for you this is an unusual approach to composition.
The fast f 1.8 lens on the Nikon Z 6 is obviously the reason for the limited DOF of this snap.
Was this surreptitious even though you were next to him?
If you had meant to do a portrait, it would have been very different, I know.
As it is, it shows perfectly well the glimpse of a memory of the fellow recording his visit. In that it’s a good but unusual documentation.
It’s recording what’s happening but not giving anything any superlative importance as no murder happened and no doctor collapsed of shock!
As such it’s an interesting approach and style.