If you are referring to the 11th episode of the (released in late 2023), the focus shifts to pure character comedy and "lovesick antics."
After failing at academics and sports, Anya uses her telepathy to hear a boy drowning in a hospital pool. She saves him, proving that while she isn't a traditional scholar, she has a "hero’s heart." Spy x Family Part 2 Episode 11
Technically of the overall series, this episode concludes the high-stakes "Campbelldon" Tennis Arc. It serves as a masterclass in how the series blends absurd shonen action with its core themes of domestic insecurity. If you are referring to the 11th episode
Loid and Fiona Frost (Nightfall) face the Campbell twins in the finals of an underground tennis tournament. Despite the opponents using rubber bullets, high-tech rackets, and a shifting court, the spies win through sheer superhuman athleticism. Loid and Fiona Frost (Nightfall) face the Campbell
The series Spy x Family can be confusing because it is released in "parts" or "cours" (blocks of roughly 12 episodes). Depending on which "Episode 11" you are looking for, the story is drastically different.
The second half focuses on Fiona Frost's obsessive daily training and her internal monologues about Loid, contrasting her cold exterior with her "lovey-dovey" inner fantasies. The Original Episode 11: "Stella"