There are lots of QSR options in the central business districts of major cities, so competition is stronger for fewer customers. Even for shoppers, Pret was a bit of a hard sell. Some of that was due to the MSC. I deleted their app a few months back but will reinstall it in order to see if my treats are still there. The beverage ones weren't supposed to expire until 2025 and 2026.
I think the hourly employees will be okay. If they were able to get unemployment, they fared better over the last few months with the PUA that was added on top of regular unemployment compensation. Also, there has been an increasing number of restaurant job openings recently, so similar jobs should be available. Not sure what things will look like for the better-compensated shop managers.