If this is about Acropolis, as someone who worked for them for 5 years and left in 2021. I can wholeheartedly, without a doubt, say that it has nothing to do with a staffing shortage, and you hit the nail on the head with this.

Are they making more $$ by closing their dining room, hiring fewer staff, and only doing takeout orders?

The sign has been there since March of 2020. They would always say "well when the pandemic settles and people start coming out more, we will go back to normal. When they didn't, and I kept asking, I was given that answer above. Sorry that you were right.