I use Lite Software and Install/Remove Software (Synaptic).
Lite Software has always been super easy in use to me because of its supreme user friendliness.
Synaptic was a bit daunting at first, but slowly I got used to it for basic operations, and used it carefully.
I have used Gnome Software Centre not on Linux Lite itself but in virtualbox (when it worked for me), I asked and
@Jerry did take the time and look in to this software centre it was LL series 3.
Although I liked it this doesn't mean it would be a good option for LL, and I think the developers know best what is the most compatible as they know how to test intensively in ways I do not, so I tend to only try out things that are like mini experiments to me in virtualbox.