A UKGC licence is the baseline, not a promise of a good experience. Check if...

https://shanesexpertthoughts.capitaljays.com/posts/how-to-compare-two-uk-slot-sites-without-getting-lost-in-marketing

A UKGC licence is the baseline, not a promise of a good experience. Check if RTP is easy to see, cashout times are clear, and funds arrive fast. Good sites also make limits, time-outs and self-exclusion easy to find and use, before play gets out of hand.