Secrets: Do you have to smash boxes?

[Meriipu]

Are there any secrets you have to smash boxes or garbage bags or crates etc to get?
I know you might have to smash barricades or doors for some, but do I really have to go on destroying every box and garbage bag I see?

[Solais]

No.

[Cunin]

lol at the beginning I used to smash every single box with that excuse in mind, but then I just realized I was doing it because I liked doing it.
But yeah, as Solais said, I don't remember a single secret being hidden inside boxes, but boxes might be used to hide one behind them. In fact, some boxes should not be destroyed because they make it easier for you to reach certain secrets by jumping on top of them.