[{"_id":ObjectId("60c7180d5ef87b4de490c56d"),"data":{"user":[{"country":"Netherlands","originalCountry":"Denmark"},{"country":"France","originalCountry":"Denmark"}]}},{"_id":ObjectId("60c7180d5ef87b4de490c56e"),"data":{"user":[{"country":"ITALIE","originalCountry":"ITALIE"},{"country":"France","originalCountry":"France"}]}},{"_id":ObjectId("60c7180d5ef87b4de490c56f"),"data":{"user":[{"country":"UK","originalCountry":"CANADA"},{"country":"France","originalCountry":"France"}]}}]

db.collection.aggregate([{"$match":{$expr:{"$allElementsTrue":{"$map":{"input":"$data.user","as":"u","in":{$eq:["$$u.country","$$u.originalCountry"]}}}}}}])