I have heard that Ubuntu MATE is more lightweight that Ubuntu. My question is does that mean that the first one uses less system resources leaving more of them for use from the user or does it handle all the processes in a different manner too?
What I mean is if I have, let's say, Firefox running with 20 tabs in both Ubuntu MATE and Ubuntu, will there be a difference in the system resources used?
Up to now I thought that Firefox will simply use the same resources in both flavors, but in the first one there will be more of them as the desktop environment is more lightweight.