When importing descriptors with a variety lower than 1000, it appears to be ignored. Is that this deliberate? I may‘t discover something about this within the docs.

To breed, first, create an empty pockets:

bitcoin-cli -regtest -named createwallet wallet_name=take a look at disable_private_keys=true clean=true descriptors=true

Import a descriptor with vary 10:

bitcoin-cli -regtest -named importdescriptors requests="[{ "desc": """wpkh([9a6a2580/84'/1'/179']tpubDCMRAYcH71Gib1rASZpnMPpJbj7S1Nzmao1nPv5Jrb8pwSUimsH5TmK842UhnGPJbiNThzxhK4BpRUCsjSckpNYkH9kjKGWLd94yhZFN94J/0/*)#rljv8npg"'", "timestamp":"now", "lively": true, "vary":10}]'

Examine the vary with listdescriptors:

{
  "wallet_name": "take a look at",
  "descriptors": [
    {
      "desc": "wpkh([9a6a2580/84'/1'/179']tpubDCMRAYcH71Gib1rASZpnMPpJbj7S1Nzmao1nPv5Jrb8pwSUimsH5TmK842UhnGPJbiNThzxhK4BpRUCsjSckpNYkH9kjKGWLd94yhZFN94J/0/*)#rljv8npg",
      "timestamp": 1666876980,
      "lively": true,
      "inside": false,
      "vary": [
        0,
        999
      ],
      "subsequent": 0
    }
  ]
}

In distinction, if I import a descriptor with a variety bigger than 1000, it appears to be revered:

bitcoin-cli -regtest -named importdescriptors requests="[{ "desc": """wpkh([9a6a2580/84'/1'/180']tpubDCMRAYcH71GibuLuWcDkwmmY1gXkXhf162QuEHxkMpZPSi7xck2eGQ6MRGKxNTeY8P1FiFTPCLA5x7qZpFx84fnnrNQFpSnUCwd1nPG8Mk9/0/*)#u49n3vuy"'", "timestamp":"now", "lively": true, "vary":2000}]'

Examine the vary once more with listdescriptors:

(…)
{
      "desc": "wpkh([9a6a2580/84'/1'/180']tpubDCMRAYcH71GibuLuWcDkwmmY1gXkXhf162QuEHxkMpZPSi7xck2eGQ6MRGKxNTeY8P1FiFTPCLA5x7qZpFx84fnnrNQFpSnUCwd1nPG8Mk9/0/*)#u49n3vuy",
      "timestamp": 1666876980,
      "lively": true,
      "inside": false,
      "vary": [
        0,
        2000
      ],
      "subsequent": 0
    }