You cannot stop the moon's demise

Babes...

Ragatha does not know Jax did that shit to Ribbit on purpose.

There's zero chance she knows. She wants Pomni away from Jax because she knows Jax is an emotionally volatile person to be around who is mean to her and Gangle and that Pomni (the only lucid person in the circus who in her own estimation currently likes her) becomes more like Jax by spending time with him, and she knows Jax and Ribbit's relationship soured after the snowy summit (already a misread on her part tbh, it was going that way long before that) but nothing about her behaviour makes sense if she's somehow aware that Jax deliberately ostracised Ribbit to the point of abstraction. I don't think anybody knew that, like Kaufmo's behaviour makes no sense if he knew.

Honestly, I think Ouija would be utterly ecstatic about not living under the Caine regime anymore and finally being able to share her secret project with the others, would latch onto Kinger as a mentor figure, and would be trying her best to use everything she's learned to help make the circus better.

Ouija's reaction to learning about the existence of her macroversion would probably be "God, please tell me I got my shit together out there."

As for her macroversion? I'm taking the optimistic view, and thinking that yes, she did get her shit together somewhat. She found just enough at C&A to spark her imagination, both inspiring her to improve her skills and giving her the courage to openly transition. That might make it more difficult for Mina to find her, but not impossible. Now going by the name Gracie Woods, she went back to California and now works doing software for a company that makes deep-sea exploration robots. Ouija and Gracie would probably both regard the other as 'the lucky one', but would be happy for what they've both achieved.