Good UK sites: UKGC is the baseline. Clear RTPs set expectations. Check payout...

https://www.strobe-bookmarks.win/good-uk-slot-platforms-meet-the-ukgc-baseline-but-service-matters-too-check

Good UK sites: UKGC is the baseline. Clear RTPs set expectations. Check payout times and delays. Seek simple safer gambling tools: limits, time-outs, self-exclusion