I use this and love it. One of the most useful adons. Really helps me to differentiate work mode form non work mode. I do wish it was built in because it appears to do it a hacky way by using bookmarks. Which is fine, because you can think of these tabs like temporary bookmarks.

Usually how I do it is at my office desk I have a second monitor I hook my laptop up to. So I open a new window, let that be the group, and then I use my mac for the terminal and my ipad sits to the side with spotify and any chat apps, out of the way and easy to dismiss.

What's extra satisfying is I'm a tab hoarder. But you finish a project and get to see all those tabs go away.