When choosing a UK casino with many high RTP slots, start by checking the game...

https://www.tool-bookmarks.win/to-find-a-uk-casino-with-plenty-of-high-rtp-slots-start-by-checking-the-game

When choosing a UK casino with many high RTP slots, start by checking the game library size and trusted software providers. Remember, RTP is a theoretical percentage over time and doesn’t guarantee wins