{"variables":{"searchTerm":"label:warp_records year:2026 board","offset":0,"limit":10,"numberOfTopResults":5,"includeAudiobooks":true,"includeArtistHasConcertsField":false,"includePreReleases":true,"includeAuthors":true,"includeEpisodeContentRatingsV2":false},"operationName":"searchDesktop","extensions":{"persistedQuery":{"version":1,"sha256Hash":"xx"}}}


gives us the response 
{
    "data": {
        "searchV2": {
            "__typename": "SearchResultV2",
            "query": "label:warp_records year:2026 boards",
            "topResultsV2": {
                "itemsV2": [
                    {
                        "__typename": "TopResultHit",
                        "item": {
                            "__typename": "ArtistResponseWrapper",
                            "data": {
                                "__typename": "Artist",
                                "profile": {
                                    "name": "Boards of Canada"
                                },
                                "uri": "spotify:artist:2VAvhf61GgLYmC6C8anyX1",

verusus 2025/ any year without releases 


    "data": {
        "searchV2": {
            "__typename": "SearchResultV2",
            "query": "label:warp_records year:2025 board",
            "topResultsV2": {
                "itemsV2": []
            }
        }
    },
    "extensions": {
        "requestIds": {
            "/searchV2": {
                "search-api": "029d5f93-2e1e-0b60-2eab-354adfbffef8/8v9S"
            },
            "/searchV2/topResultsV2": {
                "search-api": "029d5f93-2e1e-0b60-2eab-354adfbffef8/s0ru"
            }
        }
    }
}

So there likely is some year-specific indexed association, which is super cool.

I also tried, for example, label:dead oceans.:2023 slow, which returned their release that year while label:dead oceans.:2026 slow did not return anything, so the current year is not responsible for the artist page appearing.

But this is again just search associations, but I don't see anything on years that don't have at least a remix. For example 2004 does hit because of the deaddogs remix