The article compares UK and US online slot rules, from game testing to player...

https://mega-wiki.win/index.php/What_Does_%E2%80%9CDynamic_Payline_Counts%E2%80%9D_Mean_in_Megaways_Games%3F

The article compares UK and US online slot rules, from game testing to player access. It notes that a 96.5% RTP is an example, not a guarantee, and explains how state-by-state laws shape the American market.