In my account it still plays without CONFIRM buttons, which should be the default setting. (Except when placing a card in the Depot while it can go in the exhibition, or so.)
When did you get CONFIRM buttons?
Do others have this too?
(BTW: In your game settings (menu reachable at top-right-corner during games) you can choose when you get CONFIRM buttons, the default setting should be 'never'.)