From a UI perspective, auto tab groups are just an extra button as far as I can tell, so it's not clear why it's getting the axe from this site, just from a pure "this is annoying" point of view.
The flow is 1) you drag a tab over another tab and it suggests a name for the tab group and 2) you click on a tab group and another button offers to suggest more of your tabs you can add to the group. That's less intrusive than Firefox Translations are by default.
The flow is 1) you drag a tab over another tab and it suggests a name for the tab group and 2) you click on a tab group and another button offers to suggest more of your tabs you can add to the group. That's less intrusive than Firefox Translations are by default.