Gen 1 Vs. Gen 2, And A Branding Issue
The difference between USB 3.1 Gen 1 and Gen 2 USB is as simple as this: Gen 1 offers 5Gbps speeds, whereas Gen 2 offers 10Gbps. Seriously, that's it.
But why not call 3.1.1 - Yes, because there is trash documentation and standards
But the real answer is likely gladiolus