The article compares UK and US slot rules, including UKGC testing and access...
https://www.strobe-bookmarks.win/uk-and-us-slot-rules-differ-in-ways-that-affect-what-players-see-and-how-games
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.