UK online casinos operate under tight rules set by the UK Gambling Commission,...

https://businessmodelanalyst.com/the-uk-online-casino-business-model-revenue-streams-regulation-and-competitive-dynamics/

UK online casinos operate under tight rules set by the UK Gambling Commission, which ensure fairness and player protection. For example, games often offer around a 96% return to player (RTP). Despite these limits, they manage to make profits