I tried to update docs matches query using Mongodb compass
Even with $set (And UI showing updated docs…), Mongodb compass’s aggregation tab is not updating actual documents in collection (ref)

db.collection.aggregate(
  [
    {
      $match: {
        URL: { $regex: 'http.*instagram.com/*' }
      }
    },
    {
      $set: {
	    StatusCode: 200
      }
    }
  ],
  { maxTimeMS: 60000, allowDiskUse: true }
);

This aggregation does not affect actual docs even though UI shows you updated fields

Solution

Installed mongosh and copied rpm file to production server using scp, and then install using command rpm -i {filename}.rpm
run db.collection.updateMany({query}, {$set operation}) inside mongosh

mongosh "mongodb+srv://username:password@mongo-address.com/db"

db.site.updateMany(
  { URL: { $regex: "https://raeperd.github.io/*" } },
  { $set: { StatusCode: 200} }
)

Reference