Board Game Arena

In Solo we can play exactly the same card as on the top of the discard pile at any time, so for example I can play a Blue 3 when another Blue 3 is on the top of the discard pile even when it's not my turn. Can anyone tell me how this works in Turn Based games? Do I have to check manually all the time or will I get see that it's my turn when I have a card that matches the top card on the discard pile (for example when someone else plays a Blue 3 in my example)?

You only get notified when it is your turn. Technically, playing the same card is playing outside your turn so you would have to be on the game to see it.