An online casino lobby looks like a grid of games, but each tile can connect to...

https://wiki-view.win/index.php/Why_Do_Casinos_Test_Layouts_Across_Devices_Instead_of_Just_One%3F

An online casino lobby looks like a grid of games, but each tile can connect to a different provider, while separate systems track balances and payments. Live dealer games add another layer: a video stream must stay in sync with betting controls