Firebase Realtime database filter by child list content

Question

I have the following Firebase Realtime database products data

{
  "-N1OHKTcbZ1h1kJQYSW-": {
    "images": [
      "image1",
      "image11"
    ],
    "name": "Tools",
  },
  "-N1OHKTdGBQ7ukjD4Hew": {
    "images": [
      "image2",

    ],
    "name": "Colors",
  },
  "-N1OHKTdGBQ7ukjD4Hex": {
    "cat": "-N1OHKR8SsG6wsOBM1ha",
    "name": "Glasses",
  },
}

I read about deep querying in docs. I can use the following to find product of name P1.

FirebaseDatabase.instance
    .ref('products')
    .orderByChild('name')
    .equalTo("P1")
    .onValue

I can get all products without images using

   FirebaseDatabase.instance
    .ref('products')
    .orderByChild('images')
    .equalTo(null)
    .onValue

How to get

1. Products containing images
2. Products containing certain image