Rumors and speculation that only Apple-approved cables will be able to charge the first USB-C iPhone are sketchy at best.
iPhone 15 USB-C is a big disappointment — here's why
Apple reduces USB-C to Lightning Cable price amid rumors 2018 iPhones dropping USB-A - 9to5Mac
Apple selling USB-A to USB-C cable for the first time following iPhone 15 launch - 9to5Mac
USB-C: Apple's new charging socket, explained
EU Warns Apple About Limiting Speeds of Uncertified USB-C Cables for iPhones : r/technology
Apple rolls out its new iPhone 15 — and embraces USB-C
The iPhone 15 may be getting a USB-C port — but wireless is what's next - The Verge
iPhone 15 getting USB-C sounds like a win, but Apple could ruin it all : r/technology
iPhone 15 USB-C is a big disappointment — here's why
A History of Apple Cables, Interfaces & Connection Types
iPhone 15 Pro review: Best balance of performance to price yet in an iPhone - iPhone Discussions on AppleInsider Forums