Airplane Mode disables cellular radio transmit and receive, when it is on, they are off.

You can still turn WiFi, Bluetooth, NFC etc. while it is on, so any implications for that exist - but the user obviously is aware of them by turning it on. This option would also have nothing to do with operating systems or applications invading your privacy, so don't use such apps.

If people can rule up over a video that is just a voice behind AI generated stock footage with CapCut TikTok captions and "scary" music, I can't really help. This content is designed for people who wish to hear things they WANT to hear and believe.