"Being able to throw away a bunch of Lightning cables and replace them with USB C cables that iPhone, iPad, and Mac can use should be the biggest motivation for me to upgrade to iPhone 15."
So, you should invest in an excellent cable to get the best experience.
The USB-C connector lets you charge your iPhone 15, Mac or iPad with the same cable. Bye-bye, cable clutter.
USB 3.2 Gen2X2
Upgrade from 10 Gbps to 20 Gbps