[{"status":true,"task":[{"_id":"61dfef323a6ee474c4eba926","description":"hello there","title":"hello","comments":[{"comment_id":1,"username":"test","comment":"abcd","status":true,},{"comment_id":2,"username":"test","comment":"abcdsdfsdf","status":true,}],"createdAt":"2022-01-13T09:21:54.795Z","updatedAt":"2022-01-13T09:21:54.795Z","__v":0}]}]

db.collection.update({status:true},{$set:{"task.$[x].comments.$[y].username":"New Name","task.$[x].comments.$[y].comment":"New comment"}},{arrayFilters:[{"x._id":"61dfef323a6ee474c4eba926"},{"y.comment_id":2}]})