Nestle (as of last year’s financial returns) owns 20% of L’Oreal (L’Oreal details on last share sale, Nestle statement of its relationship with L’Oreal). They reduced their holdings a couple of years ago (down from 23%) but at 20% they’re still one of the more significant L’Oreal shareholders (though not the largest at L’Oreal).
I think it’s more complex for chippies. Fish and chips was meant to be a cheap treat, that’s why it has such a strong working class heritage behind it. So the price rise makes it untenable in a way that may not affect other takeaways. Like, if I’m going to pay £20 for some fish and chips, I might as well have a Chinese. It’s a cultural thing.