I just did a clean install of EOS using the latest ISO. I picked Plasma DE as I usually do and I noticed that I have a blank icon where Discover package manager usually is in a KDE Plasma install. On an standard KDE Archlinux install I just add packagekit-qt to make Discover work.
Can someone explain what is going on with Discover on EOS? is this a bug or what should I be using for a GUI package manager?
Yes, that is because it is installed with the defaults and we don’t install discover or any graphical paclage managers.
As for the default GUI package manager, please read this:
If you want a GUI package manager, there are 3 options for you to choose from. All are in the AUR. pamac-aur, octopi and bauh
But you shouldn’t. Discover uses packagekit and packagekit has no support for manual intervention. Using any packagekit-based solution on an Arch-based distro is a good way to break your install.
Of course, you can still do that on EndeavourOS by installing discover and packagekit-qt5
Pamac is more focussed on Manjaro and it, not the system, can break once in a while.
If you want a somewhat more reliable GUI package manager, try bauh.