Since I started playing (Oct 16) there has only been free bingo in All Stars and Grand Prix.
And I'm grateful that there is any free bingo at all, even if it's very hard to win anything.
@PokerAndBettingThere used to be free Bingo in all rooms, like one game every half hour or so. But I guess they thought it was a little too generous or something. Back then the free games in Arena and Podium used to have a €10 prize pool, while the All Stars and Grand Prix ones only had €5. But when they reduced the number of free games and removed them from Arena and Podium, they increased the All Stars and Grand Prix prize pools to €10, so at least that weighs up for it a bit. But that said, I also miss the free games in the other rooms.
And I should probably add that I'm also very grateful that they still offer free games as often as they do. There aren't a lot of Bingo rooms that do that.