Parodies, references explanations for Kaguya-sama wa Kokurasetai? Tensai-tachi no Ren`ai Zunousen / Kaguya-sama: Love Is War 2 episode 7.
Timestamps are approximate
1:53The logo on the phone is a parody of the Apple Inc. logo. The phone itself resembles iPhone 7 to 9. Fujiwara Chika also says “OK Siri” which is a parody mixing the “OK” from “OK, Google” for the Google Assistant and “Siri” from “Hey, Siri” for Siri, Apple Inc.’s virtual assistant.
Screenshot credits: ©赤坂アカ／集英社・かぐや様は告らせたい製作委員会