It is a thing, but I find that having separate desktops ("spaces" in OSX terminology) for different tasks helps me context switch back to the task quicker. I keep different desktops for different tasks, each with their own terminal running. Each terminal may have several tabs opens. When it's time to switch to that task, I switch to that desktop. When that task is completely done, I just close everything and remove the desktop.

Keeping this all in my head - even remembering how many shells I had open to do what - takes more thinking and effort than I want it to. It is far easier for me to just say, "This is where all the stuff for X goes" and physically isolate it from everything for Y and Z. And when I go back to it, it's all where I left it. I find this a much easier workflow.