A Unity ID allows you to buy and/or subscribe to Unity products and services, shop in the Asset Store and participate
in the Unity community.
Yes, it still old one(1.4.0)
And Learn links can get online resource(like trainning), Links (from Leanr page) is all correct.
My OS Info:...
I download Unity Hub 2.0.0 from this thread:
Hub 2.0.0 for Linux
But when I...