> Everyone moving to USB-C was the same standard, though; now you can use the same charger with your phone, laptop, tablet, other random gadgets, etc.

You could already use the same charger with nearly everything. It was the cables that were not necessarily USB on the device end.

Apple for example as far as I can tell has used USB chargers for everything (phones, tablets, music players, headphones, Apple TV remote) except laptops since sometime in 2012. For laptops everything introduced after the last MagSafe 2 laptop in mid 2017 has used a USB charger.