Linux noob here. Actually quite a bit of IT novice too (with some knowledge only).
First, I want to thank the Lubuntu team for creating such a lightweight (most importantly) and yet beautiful looking OS. Great job guys! Onto a quirk I encountered…
I have been trying Lubuntu 19.04 64-bit through a live USB. About the workspaces/ desktops - whatever windows or applications I open on one desktop (say, desktop 1 by default), the same windows can be seen in the other 3 desktops. Isn’t the point of different desktops to segregate categories of work and switch for ease of use? This is peculiar. If I load a few windows on one desktop, the rest of the desktops should be empty unless I open the very same windows on them myself. Instead whatever is opened in one desktop opens in the rest of them. When I say “open” I mean the windows in the other desktops are minimized and can be seen in the taskbar, not maximized. Another way this manifests in a strange way is whatever changes I do in desktops other than #1 (opening another file or folder/ closing a file or folder,etc) it gets mirrored in all desktops AND desktop 1 is switched to automatically, no matter if I perform the actions in desltop 2, 3, 4 and so on.
If I need to change something in settings or somewhere, please let me know. If it’s a bug, let me know too. The other distro I am mulling about to migrate to is Debian 9 LXDE, which is also lightweight but, one, is not that much of an eye candy, two, seemed a tad less snappy than Lubuntu (perhaps only to me eyes; really the margin is negligent and unimportant). Usage of RAM though when idle is less on Debian, so that’s making me lean towards it as my laptop doesn’t have high specs. Please help me with the quirk. I’m going to try 18.04.2 LTS to see if the same quirk exists in it. I have read about Lubuntu having its bugs and instability issues, so I might migrate to the stable Debian LXDE but not without missing Lubuntu.
EDIT: Just checked the same thing on Lubuntu 18.04.2 LTS and the quirk remains the same. Whatever windows I launch in desktop 1 gets launched in the other desktops too (they should be empty). Also, I like 19.04 better in terms of looks and speed. IT just seems snappier (negligent margin though) than the 18.04 LTS version. Not that 18.04 is slow by any measure.