Many retailers use CRM; our clients have a great one for free.
Although I have not seen any of our clients report any significant customer churn. I have checked our CRM, I can find little sign there yet the figures now coming out from other suppliers of CRM are saying that companies have noticed that "customers are leaving at extraordinary rates." We all expected this as the COVID crisis was a prolonged crisis. This was long enough to change the public's habits. With the reopening, people are now coming out. As the old patterns are just memories, we are now looking at something new. We are trying new shops, restaurants, doing new things, etc.
Meeting the danger
This customer relationship emergency needs to be met with a return to nuts and bolts. We need to review our customer relationship. The problem is not that people's needs have changed, but they are now exploring.
I would also suggest you look into your CRM system.
There is a "Great Reassessment" across society.