Work make me use Chrome, and I have recently converted hard to tab groups. I've found two main uses: one for a collection of reference tabs that I mostly want open or closed together (specific API references that are normally spread out over a few pages); the other is to organise groups of tabs for different projects I'm working on.
Both of these make context switching easier as I can quickly hide all of the tabs I'm not currently using, knowing they'll be just as easy to reopen later. In Chrome, tab groups can be saved too, so they give you a bit of the persistence of bookmarks.
I'm still a Firefox user where I have a choice, and I'm really excited to hear they're working on first-class tab groups
Both of these make context switching easier as I can quickly hide all of the tabs I'm not currently using, knowing they'll be just as easy to reopen later. In Chrome, tab groups can be saved too, so they give you a bit of the persistence of bookmarks.
I'm still a Firefox user where I have a choice, and I'm really excited to hear they're working on first-class tab groups