These seem to be pseudo-labels just meant to represent the phonographic copyright date. However, these seem to be also be used by artists representing major labels. There also aren’t that many releases on Spotify when doing a label search, and it seems to be predominantly hip hop releases.
Does anyone know what’s up with this? My initial thought was to merge it to [no label], but the genre focus of most releases being by American hip hop artists makes me wonder if this is more legitimate. It seems to have some association with Warner Music Group, based on the “sped up nightcore” pseudo-artist associated with the label group having a presence in these label searches. Also, this single, which I just added, being licensed to Atlantic (which is under Warner).
 Spotify album search by label: P2023
 Demopoulos, Alaina (Jan 10, 2023). “Why is Spotify full of faster versions of pop hits? Let’s bring you up to speed”. The Guardian.