A: Those videos are scams. They usually ask you to install a “Configuration Profile” (MDM) or a fake enterprise certificate. This gives the hacker remote control of your phone or steals your data. Do not click.
Be cautious of "RC" mods or unofficial "iOS style" versions found outside the App Store. Official warnings have been issued regarding targeting iPhone users through fake iOS apps primarily located in regions like Italy. iOS 26 Final Update Before The RC! rc whatsapp ios
Possibly via AltStore sideloading, but you will lose push notifications, and the app will expire every 7 days. It is not practical for daily use. A: Those videos are scams