The UK model, built around the Gambling Act 2005 and overseen by the UK...

https://delta-wiki.win/index.php/Why_Does_the_Financial_Times_Talk_About_Fragmentation_in_EU_Gambling_Rules%3F

The UK model, built around the Gambling Act 2005 and overseen by the UK Gambling Commission, sets clear rules for online casinos to protect players. One key protection is the requirement for operators to keep player funds separate from their own money