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.
Separate names with a comma.
I found that Hub version 3.4.0 beta 1 almost worked but casted this error at the end of process....
I am seeing the same issue. D:\>"C:\Program Files\Unity Hub\Unity Hub.exe" -- --headless install -v 2021.3.8f1 -c b30333d56e81 -m linux-mono...