A casino operator runs the site and manages its catalogue. A slot provider...

https://mega-wiki.win/index.php/Does_the_Provider_Affect_the_Odds,_or_Are_They_Set_by_the_Casino%3F

A casino operator runs the site and manages its catalogue. A slot provider makes the games. Provider names show who built a title and help you compare games across sites. Visuals and sound may vary, but they do not change the game rules.