How have I not heard about this in the bajillion times I whined about tab groups? I kinda dislike that Firefox only have one good option that involves complete

How have I not heard about this in the bajillion times I whined about tab groups? I kinda dislike that Firefox only have one good option that involves completely hiding each group currently not in use, but it functioned ith their tab containers which made it worth the hassle. If this does too, I'm switching permanently