Vertical tabs and tab groups: I was waiting for them for years! So far, I like it. Although, name-wise, "Tab container" and "Tab Group" sound like similar con

Vertical tabs and tab groups: I was waiting for them for years! So far, I like it. Although, name-wise, "Tab container" and "Tab Group" sound like similar concepts based on their names. How dissimilar are these 2 features?