tomscharbach It might be that Lithium isn't a DE at all, but a set of tools from which you roll your own.
BunsenLabs Lithium
That's very possible. I'm not much concerned about that, because the DE -- whatever it is -- is quite usable.
Although there are half a dozen or so file managers provided, I'm finding that Thunar (the default) works quite well, for most purposes. But connecting with my NAS wasn't one of those purposes. It does list a link to Browse Network, but any attempt to use that feature only results in a failure.
Thunar. Kinda sounds like the name of a Marvel Avenger, doesn't it?
What I was trying to do was to retrieve my bashrcAdditions file and my fstab additions from my NAS, so that was not gonna work. Then I remembered that I had sent myself an email containing the contents of those text files a while ago, while exploring a different distro. Since I had Vivaldi installed and configured already, getting what I needed from Vivaldi Mail was trivial. So, now I had all my friendly macros available in the terminal, and /etc/fstab now included my 12 NAS shares.
After modifying /etc/fstab to include my NAS shares, though, I couldn't find a way to mount them in Thunar. I could change to /mnt and view the shares all there, and display their contents, so I was assured that the /etc/fstab additions are working perfectly, but it's a convenience to see their names in the Places list in a file manager. If anyone uses Thunar, and knows what incantation is needed to do this, please share.
Workspaces are still an issue. I thought I'd seen a related menu item at one time, but I now realize that was for configuring temote deskops, not virtual workspaces. It's been a common feature of Linux forever, though, so I haven't given up on it yet. Doing anything that requires several windows to be open at the same time is a real chore with a single desktop (workspace). It just doesn't fit my needs.
Moving on ...