PostgreSQL: Does jsonb sort Objects in array?

Example: [{3},{1},{2}]. Does it sort it? [{1},{2}, {3}]

I was confused because of this answer?
https://stackoverflow.com/a/49833552/15502607

3. JSON maintains the order in which elements are inserted, while JSONB maintains the "sorted" order.

>Solution :

No, the point in the answer was about the order of the keys in a JSONB object. JSONB arrays maintain the order of their elements in the insertion order.