"on someone's doorstep" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "prepositional phrase",
        "head": ""
      },
      "expansion": "on someone's doorstep",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "on someone's doorstep",
      "name": "en-PP"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prep_phrase",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2021 December 27, Aaron Collins, “Some Covid masks are better than others. I know – I’m the Mask Nerd”, in The Guardian",
          "text": "With ample supplies of these masks available and a more transmissible variant on our doorstep, there has never been a better time to up your mask game. I encourage people to go out and try a few different varieties, find what they like and what fits their face.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Very nearby."
      ],
      "id": "en-on_someone's_doorstep-en-prep_phrase-suedtOcr",
      "links": [
        [
          "nearby",
          "nearby"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) Very nearby."
      ],
      "synonyms": [
        {
          "word": "at someone's door"
        }
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "word": "on someone's doorstep"
}

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "prepositional phrase",
        "head": ""
      },
      "expansion": "on someone's doorstep",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "on someone's doorstep",
      "name": "en-PP"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prep_phrase",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English idioms",
        "English lemmas",
        "English multiword terms",
        "English prepositional phrases",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "2021 December 27, Aaron Collins, “Some Covid masks are better than others. I know – I’m the Mask Nerd”, in The Guardian",
          "text": "With ample supplies of these masks available and a more transmissible variant on our doorstep, there has never been a better time to up your mask game. I encourage people to go out and try a few different varieties, find what they like and what fits their face.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Very nearby."
      ],
      "links": [
        [
          "nearby",
          "nearby"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) Very nearby."
      ],
      "synonyms": [
        {
          "word": "at someone's door"
        }
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "word": "on someone's doorstep"
}