I hope sharing this experience might be of some use to distro / desktop hoppers who are low on resources!
Having used Gnome for a couple of years now on Debian Stable, after being inspired by the desktop customisation episode of DL, I thought I’d try Plasma. It was also because I run old hardware and Gnome was using a lot of memory and doing background tasks I wasn’t convinced were essential. Not good if you only have 2GiB RAM as some of my really old machines do I have been using Plasma pretty-much exclusively for about a fortnight now.
Straight away, Plasma seemed to be saving me a large amount of RAM (approx 700MiB I believe) which helped reduce swapping when multitasking and sped things up very noticeably.
Besides this, I have started to quite enjoy being able to customise pretty-much everything the way I like it, not just on the DE but on the core applications as well, such as Konsole and Kate. I am also enjoying that these have not been pared-down to absolute minimal as in Gnome. I like Gnome minimalism staying out of my way by not having huge menus etc. but it was really failing me by not getting out of the way behind the scenes, e.g. it seems to be constantly running software update checks and disk indexing software or something in the background.
One thing Gnome was better at is how Gnome Software checks and informs me when Flatpaks have updates. I don’t believe the Plasma equivalent does, or maybe I haven’t figured this out yet?
I originally switched to Gnome from XFCE because it is modern, consistent and I love it’s workflow e.g. with automatic creation of new workspaces. I still appreciate these features. However given the numerous advantages I have found for my needs by using Plasma, it isn’t likely that I will be rushing back to Gnome any time soon, not that I dislike it in and of itself.
I find there is a lot to learn in Plasma and I’m still working on it. If you have any favourite features that you recommend I try, please let me know