Database 聚合以过滤 MongoDB 中的引用

我正在try 使用Mongoose进行聚合，但我遇到了一个问题，我得到了以下结果:

[
   {
     _id: new ObjectId("630bb658370cc689973c5bb4"),
     isRead: true,
     user: new ObjectId("630273bbe0f3f82d85b149bd"),
     globalRef: new ObjectId("630bb649370cc689973c5b62"),
   },
   {
     _id: new ObjectId("630bb649370cc689973c5b62"),
     isRead: false,
   },
   {
     _id: new ObjectId("6306bcf16fa60080148fefb6"),
     isRead: false,
   },
   {
     _id: new ObjectId("630273bbe0f3f82d85b149bd"),
     isRead: false,
     user: new ObjectId("630273bbe0f3f82d85b149bd")
   },
   {
     _id: new ObjectId("6306bcf16fa60080148fefb7"),
     isRead: true,
     user: new ObjectId("630273bbe0f3f82d85b149bd")
   }
]

我们可以看到第一个元素具有对第二个元素的引用(globalRef)，

如果存在另一个元素并引用后者作为引用，我想删除这些元素，这可以通过$Match？$group？$project？$Filter实现吗？

预期结果:

[
   {
     _id: new ObjectId("630bb658370cc689973c5bb4"),
     isRead: true,
     user: new ObjectId("630273bbe0f3f82d85b149bd"),
     globalRef: new ObjectId("630bb649370cc689973c5b62"),
   },
   {
     _id: new ObjectId("6306bcf16fa60080148fefb6"),
     isRead: false,
   },
   {
     _id: new ObjectId("630273bbe0f3f82d85b149bd"),
     isRead: false,
     user: new ObjectId("630273bbe0f3f82d85b149bd")
   },
   {
     _id: new ObjectId("6306bcf16fa60080148fefb7"),
     isRead: true,
     user: new ObjectId("630273bbe0f3f82d85b149bd")
   }
]

谢谢你的帮忙