[{"_id":"63269e0f85bfd011e989d0f7","orders":[{"paymentIntentId":"pi_3LjFDtSHVloG65Ul0exLkzsO","cart":[],"amount":3007,"created":1663475717,"_id":"6326a01344f26617fc1a65d6"},{"paymentIntentId":"pi_3LjFFUSHVloG65Ul1FQHlZ9H","cart":[],"amount":389,"created":1663475816,"_id":"6326a07744f26617fc1a65d8"}]}]

db.collection.aggregate([{$unwind:"$orders"},{$sort:{"orders.created":1}},{$group:{_id:"$_id",asc_orders:{$push:"$orders"}}},{$addFields:{desc_orders:{"$reverseArray":"$asc_orders"}}}])