A UKGC licence is the starting point, not the whole story. Compare how clearly...

https://wiki-nest.win/index.php/What_Does_%E2%80%9CIndependent_Testing%E2%80%9D_Mean_for_Slot_Fairness%3F

A UKGC licence is the starting point, not the whole story. Compare how clearly a site displays each slot’s RTP, whether withdrawal timeframes are easy to find, and how reliably payments are processed