The article disappeared. No wayback, but here are some related pieces.

What are GMSSELFingestor and IFTranscriptSELFingestor notifications on iMac?

https://discussions.apple.com/thread/255988020?sortBy=rank

Enjoy the Bounty - Proactive Harvesting in Apple Biomes

https://northloopconsulting.com/blog/f/enjoy-the-bounty---pr...

Biome isn’t about biometrics, but suggestion

https://eclecticlight.co/2022/06/27/biome-isnt-about-biometr...

If you dislike "another proprietary Apple function with no public documentation " there's open source.