I had always shopped in person at the supermarket until lockdown. I had great difficulty registering with any supermarket online , so had to use 'wrinkly hour' at Sainsbugs at first, but eventually managed to get a click and collect slot at Asda, which is not a shop I ever use, normally. I have been really pleased with this way of shopping. Use by dates are always very good, and I've been pleased with the quality of the products. Vegetables ( especially broccoli and tomatoes) are cheaper and better than those from more expensive stores. I've learned to do a main shop every 2 weeks which means there is no charge for my order, and the system of collection is simple and easy. I shall continue this way of shopping, though there will be visits to Sainsburys and Waitrose from time to time, for products that are not available in Asda.
Of course I appreciate that this is no use to anyone who does not have transport!!