Typical shul: many unrelated people walking around, touching things, sharing things, talking to each other. Rarely are surfaces sanitized. Spreading viruses (potentially)
Typical restaurant: families sit together a distance from each other. Don’t walk around. Don’t share things with other tables. Surfaces regularly sanitized.
See any differences?
(Happens to be I think Shuls should stay open and follow common sense cleaning and cleanliness and sanitization)