I suspect that she’s actually having someone else handle the promotion for her.
I’ve noticed other creators doing similar things before.
They maintain an official account and platform, but on Instagram — besides their main account — they also create a separate persona and account.
The short videos there have a completely different style, and the link to their paid platform often looks suspicious or unusual.
For example=>
https://sexyforums.com/threads/l-cup-asian-rantsai-???.58160/
And then her fake persona account=>
https://www.instagram.com/annvocadoe/
It seems like she’s now using the same approach, so she likely has a real paid-content account behind the scenes.