Database

[{"createdAt":ISODate("2022-01-01T00:00:00Z")},{"createdAt":ISODate("2022-02-01T00:00:00Z")},{"createdAt":ISODate("2022-02-27T00:00:00Z")}]

Query

db.collection.aggregate([{$match:{$expr:{$gte:[{"$month":"$createdAt"},2]}}}])

Result