UKGC is a baseline, not the full test. Check clear RTP for each slot, cash-out...

https://sofiascoolcolumn.rivetgarden.com/posts/what-are-red-flags-for-rtp-transparency-on-a-slot-site

UKGC is a baseline, not the full test. Check clear RTP for each slot, cash-out speed and payout times. Look for easy limits, time-outs and self-exclusion, plus clear help if play feels less fun. Read terms to know what to expect before you play or deposit