In European — 2.7%, in American — 5.26%. In French, when the La Partage rule is active, it decreases to 1.35%.
You can get up-to-date information about slot parameters on the developer's website and in the slot itself.
It depends on your bankroll and your gambling goals. The higher the volatility, the more money you need. Such a game is riskier, but it can potentially bring large payouts.
In most casinos, wagering is only possible in slots. In table games and the Live section, progress is either slow or not available.
It works, but it’s not perfect. This is because it is designed for more than one deck. At most blackjack tables, the dealer uses more than 5 decks.