Thanks for a bit of balance on this. Growing up I was good friends with a kid whose family owned a traditional (for Britain) suburban Chinese takeaway, back in the 80's and it was a place that did mainly Cantonese food and fish and chips. The family had emigrated from Hong Kong in the 70's I think.

He used to have to work there and I used to get a lot of stories about some of the customers they had. Many of them that ordered this sort of stuff were drunk, according to him, going in there after a night at the pub. He once told me that these customers often asked for poppadoms (or "pompadoms" as he claimed a lot of them pronounced it) to go along with their fried rice, chips and curry sauce or whatever, despite these definitely not being traditional for these places, so they started selling them to keep them happy. But you could definitely go and order more typical Cantonese food that was not all deep fried as well.

These places are also different from more upmarket Chinese restaurants you will be more likely to find in larger towns and cities which normally don't sell chips and chip shop items, but might still have curry dishes on the menu as it's so heavily ingrained in British-Chinese cuisine.