Before you decide to go to half the stores which are open today, think - do you actually need anything? If not, stay away from them.
Those supermarkets that are open would have very few deliveries. Perhaps milk n bread as majority of these are delivered by the bakery and dairy. It depends on if they worked yesterday. As some distribution centres were closed yesterday.
I personally believe that people only shop because the shops are open. If some were open yesterday, they would have gone in.
A good number of the retail workers today are people who don’t have a car who usually bus it in. But no buses means either get someone to drive them in or get taxi/uber which are 1.5-2 times more expensive.
So if you can survive a day of visiting about half the stores which are open today, stay at home or go to others’ homes.