The new anima hotfix

[Teufelgott-shadowsong (Teufelgott)]

I interpret it as being character-bound, not account-bound.

@Kaivax

The new Achievements will be granted to player-characters who already have the required Sanctum feature tiers when you next log in, and you can start earning the additional Anima immediately.

It indicates that the achievements are granted to characters, not accounts. I would assume if the achievements were account-wide, that would have been mentioned.