My experience is most stores are doing a good job making things safe. In fact I think the installation of plastic barriers at the check out is something that should have been done a long time ago. Checkers have been subject to our germs for too long.
We humans can be so stubborn when it comes to change. Think about how often in the past you would see people would take a food sample with their hands and disregard the toothpicks. I see that QFC has reopened their self-serve donut cabinet. That doesn’t feel good to me so I don’t go there. All I can do it leave when I find myself in a place that doesn’t feel safe.
If you don’t feel safe going into a store, it is ok to stay home and order delivery. Instacart does a great job.