I believe workspaces are present from KDE4 on. Also, you can achieve the same functionality in i3, i3 can remember the positions of the open windows. But you n

I believe workspaces are present from KDE4 on. Also, you can achieve the same functionality in i3, i3 can remember the positions of the open windows. But you need to write a script to open the corresponding applications and identify them to i3, so windows can be "swallowed". However workspaces on KDE were magnificent. They remembered state between applications too. I only used KDE4 workspaces -FreeBSD does not yet support Plasma- and was fairly satisfied.