Hopefully the supply chain will do the same with respect to supermarkets.
For all the PR, people's champion, we're on your side stuff, when I used to do contract jobs for Tesco, they were by some distance the worst retailer at squeezing suppliers and generally making life as difficult as possible for us. To the point where we binned them off and just worked for their competitors. Aldi and Sainsburys were the opposite. Always courteous, paid on time and didn't use their leverage to squash us to oblivion.