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iPhone 15 Models Have 'Completely Standard' USB-C Port Without Restrictions on Accessories
(www.macrumors.com)
This is a most excellent place for technology news and articles.
Not just that, lightning was a similar speed to usb2. It's in their interest to make the pro look like an upgrade rather than highlight just how bad the lightning was really for the consumer
Lightning WAS usb2. Like, USB 2.0 signalling was present on some of the pins on the Lightning port. Since USB 2.0 only needed two data wires that was easy to do.