That's gotten me married to Firefox. The hierarchical vertical tab management makes research and general web browsing far more efficient and productive. It also helps me know which tabs I can close when I'm done.
I did. TBH, it did not do much for me, but I'm pretty sure the problem is me.
I've tried all kinds of tab management things (they're usually a motivation for trying a new browser that supposedly offers a better way) and nothing ever sticks out for me.