Casino games, gambling, and betting all mean different things under the UK...

https://judahssuperchat.swiftnestly.com/posts/why-does-gaming-mean-video-games-sometimes-and-gambling-other-times

Casino games, gambling, and betting all mean different things under the UK Gambling Act 2005. Casinos offer games like roulette where you play against the house. Gambling covers a wider range of activities involving risking money, including betting