yes... but....
Making do with what you have. You still had to buy it! I wonder if this thread has shown many people shop as much from habit as necessity.
I tend normally to shop little and often with the occasional trip for a trolley-load from Aldis or Lidls, but have had to modify that a bit in the present situation. I did not go mad so have a modest but reasonable stock of food, though still need visit my local Co-op, only a few minutes' walk from home, every few days for fresh foods like milk, bread, and salad veg.
My local, independent bakery has closed for the duration; as have the local café and pub, two Chinese take-aways, and fish-&-chip shop. The pizza chain shop has moved to telephone-and-deliver trade, but when I want a pizza I buy the Co-op ones for heating at home anyway. One of those plus salad is two meals for me.
I've found I am beginning to eat a bit less - not enough exercise perhaps, especially with the weekend caving-trips that had been a regular part of life now suspended indefinitely.
With other things off too, I probably am saving at least some money overall - just as well because once things are back to normal (ish) I need estimates for important house repairs I can't carry out myself and won't be cheap!
That café by the way, is run as a charity mutual-support group by and for ex-Services personnel, but open to the civilian public as well. When it is open and not closed by a pandemic lock-down. I soon spotted the irony that the clients of an ex-Services café for people who have been through Hell and high water in Afghanistan, Iraq, etc., are now kept in their own bunkers by one of the tiniest and simplest but nastiest scraps of life.