Are Banished Cards Destroyed?

Banished cards cannot be destroyed. Returning a banished card to the Graveyard is not considered to be sending that card to the Graveyard, and can be done even if a card like "Dimensional Fissure" is active.

Is banish and destroy the same thing Yugioh?

A card that is returned from the field to the hand or Deck, or, that is sent to the Graveyard as a cost or Tribute, is NOT considered “destroyed”. Cards already in the Graveyard and banished cards cannot be destroyed.

Can you get banished cards back?

Adding a banished card or a card from the Graveyard to the hand is a form of returning. ... When a monster is destroyed by battle during the Damage Step, it cannot be returned from the field to the hand, Deck, or Extra Deck (unless a card effect specifically permits it, such as "Grave Protector").