When I throw a Shulker box into the lava or a cactus they don't return the items

When I throw a Shulker box into the lava or a cactus they don't return the items

I throw a Shulker box with netherite it won't give me back the netherite if I throw it into the lava

Or if a Shulker box with nether stars exploded, it won't give me back