The article compares UK and US slot rules, including UKGC testing and access...
https://www.alphabookmarks.win/the-article-compares-uk-and-us-online-slot-rules-including-game-testing-and
The article compares UK and US slot rules, including UKGC testing and access limits. A 96.5% RTP is an example, not a promise; New York allows sports betting but has no online casino market, showing how rules differ in practice.