Database
[{"status":"registered","createdAt":new Date("2022-07-11T00:00:00Z")},{"status":"registered","createdAt":new Date("2022-08-12T00:00:00Z")}]
Query
db.collection.update({$expr:{$and:[{$in:["$status",["registered","applied"]]},{$lt:["$createdAt",{$subtract:[new Date(),604800000]}]}]}},{$set:{status:"rejected"}})