

This is so true. It’s been good enough for me for so many years at this point, and yet it just keeps getting better. The whole experience is so much nicer now than it was years ago, which was better than years before that, etc.
(That said, better hardware also helps a lot.)
By “auto-grouping” you mean that it groups when you drag and drop, but you still want it available in the context menu? You could set
browser.tabs.dragDrop.createGroup.delayMS
inabout:config
to a very high number - then you’ll have to hold one tab over the other for a long time before it actually offers to group them.