Here's some lore about Gebrix's universe
Alphone is just a prototype, but only because of the skibidi uprising in the Astro Wars universe, they didn't get scrapped for future models.
But since that and the Astro invasion never happened in Gebrix's universe, they were scrapped. Alphone somehow got out of the incinerator and built the Phonemen Armada like they did in the AW universe, then eradicated humanity. And Alphone is now the ruler of the world.
They soon ran tests on human DNA. One of the experiments were on animals. That's how the Anthros, like Gebrix's ancestors, came to be in Gebrix's universe.
They didn't kill them because they knew what happened to their leader before the uprising. Now the world is just populated by phonemen and anthros.
All this happened 50 years before Gebrix was born [2100]