Yeah, it’s legit but kind of tricky — the dev actually gives operators multiple RTP versions to choose from. According to
https://bigbassbonanzaguide.com, Pragmatic Play provides three official settings: 96.71% (premium), 95.67% (standard), and 94.5% (budget). Most reputable casinos use the highest one, but some high-traffic sites switch to the lower RTP to increase margins. The guide even recommends checking the in-game info panel or the gear icon before playing to see which version you’ve got. Same slot, different math — that’s why results vary between sites.