UK supermarkets are crap, and have got noticeably crapper in recent years. At even large mid-tier supermarkets you will find a paltry range of fruit and veg, and a maeger selection of almost entirely prepackaged meat and fish. I have noticed many things are routinely out of stock and it can be a lottery shopping for a specific recipe. I recently visited Portugal, and in a small city supermarket there was a bakery, me…
Tesco somehow always managed to have what I needed but my local Safeway in SF frequently has empty shelves (predating the pandemic.) And unless you go to Trader Joe’s (which is missing a bunch of other stuff) there’re no nice freshly preprepared meals available.