I will sign off on this as a good summary of it. I played a fair bit of rugby and Gaelic when I was younger, so I am perhaps a little less likely than the average Brit to instinctually assume soccer is the One True Football™ (though I do still habitually call it football)

We’ve got a few places in Scotland that still play a game or two of what is essentially pre-code football each year, most famously the Kirkwall Ba’ Game on one of the islands just off the northern tip of mainland Scotland. The pitch is the high street, and the teams are essentially “anyone from north of the market cross” vs “anyone from south of it”