She can't pick mushrooms due to not knowing which mushrooms are the best.
Solution
Tiffi helps her to choose the best quality of mushrooms.
Full list of appearances
Reality:
Foxie is a minor character in Candy Crush Saga. She is a fox that first appears in the 81st episode, Fungi Forest. Before introducing level 1191, she was picking mushrooms with Tiffi.
Due to April Fools 2020, almost all episode characters (but eight) have been absent from the game. A few other characters make occasional appearances in events.