I used to have two monitors and I loved xmonad's ability to switch which workspace was visible on each.  That allowed me to set up multiple windows in a workspace and then pop them all in and out as needed.  I've since replaced them with a single ultra-wide monitor.  I thought it would be amazing, if I can pop in two workspaces side by side on the same monitor and control each independently as if they were on two monitors.  Could something like that be possible?
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