And this is really the crux of the discussion on whether restaurant demand will go back to normal. There's certainly a large group that fits your final sentence. Then there are those, like our friend in this thread gaobest, who claims to be enjoying the new-found cost savings and the pleasure of cooking good food at home.

I love good food. Doesn't matter if I make it at home, eat in a Michelin-starred restaurant or a roadside shack. I happened to move from Chicago to the suburbs just about the time the lockdown started last year. Both those events changed my dining habits drastically. I'm going to restaurants less now, but that's a result of supply rather than demand. If I had the choices that were available to me in the city, I'd go out more. As choice/supply returns for others who didn't move, what will the demand be? In terms of whether this server shortage persists, the answer to that question may matter quite a bit.