I think it's paradoxical to suggest Michelin-starred restaurants could be everywhere, given the whole point is the travel-worthiness i.e. a scarcity that justified effort.
That aside, to take the strongest form of the argument, I think even if every human being could get their ideal meal, no matter what it is, at any time and for free - and even if the cook in question is only doing it for social reasons - cooking would still be valued. It's the effort put in by a person which is scarce and precious. Even if people were immortal, that time in the present would still be valuable in itself.
> How is kindness demonstrated in a world where no one wants for anything?
Post-scarcity of material things won't sedate humans. Kindness is a thing wanted in and of itself, but more importantly, internal struggles and desires can't all be resolved through material gain.
> How can someone be more interesting than synthetically generated content created specifically attuned to our personal interests?
The answer is apparently, pretty easily? By and large it seems the consensus is social media and digital content are exploiting a niche of providing a low-effort, highly-addictive pastime.