There’s also Orion, at least on Mac. It hasn’t replaced my daily driver (Brave), but I’ve been using it as a ‘container’ of sorts for LinkedIn and have found it

There’s also Orion, at least on Mac. It hasn’t replaced my daily driver (Brave), but I’ve been using it as a ‘container’ of sorts for LinkedIn and have found it to be pretty good. Brave currently has vertical tabs as a flag-enable-able option, and if they add tree hierarchy, I probably won’t switch. But if not, I’ll likely move to Orion, which has been working well for me.