The consumer facing names for those transmission specs are and have always been:

• SuperSpeed 10 Gbps

• SuperSpeed 20 Gbps

Unless you’re designing your own circuits you don’t need to worry about signaling rates (ie “Gen”) or lane configuration (Z×Y).

The don’t.

But give me an example of what you’re talking about. I’ll explain.

I mean, they update the standard to add new things. Is that bad?

They are not bad at this. You are bad at understanding it.

Don’t get mad when you could instead learn something.

Yes it gets complex. It’s a 25-year old protocol that does almost everything. Of course it will be.

But the names are not hard if you bother to learn them.