1 million active players, but how many of them are bots and alts?

[Sindele]

Very few, mostly because the "Active Player" determinator is going to cut out most basic gil farming bots, as Fawkes mentioned. The only bots that need to clear Endwalker are top-end craft/gather bots, and even a maximally skeptical view of how many of those exist is going to struggle mightily to justify anything above four figures - they're relatively expensive, competition-sensitive, and effective enough operating off a single character or a tandem craft/gather duo that the major limiter is sale slots.. which isn't something you need more full cleared characters for.

Alts is a trickier call in theory, but the tell for me is that if it was a significant factor, I'd expect to see a noticeable uptick on either Balmung and Mateus from all the RP alts, or Gilgamesh from raiders using alts to funnel reclear loot. But.. well, the former doesn't need to be fully up to date save for rare instances of glamour chasing, and the latter isn't really necessary in the modern environment. Both show in the proportional and expected character counts.