openSUSE Leap borrows packages from SLE. The content of the build media is almost the same as Leap:15.2, but the development is drastic different. It includes the binaries (instead of the sources) directly from SLE.
https://lists.opensuse.org/opensuse-factory/2020-04/msg00165.html

This project is used by hmacht to prepare packages for openSUSE:Factory submissions. Usually all package changes should get submitted here for review and testing first.

packaging workshop mainly for multimedia:apps and libs.

This project is used by timl33 to prepare packages for openSUSE:Factory submissions. Usually all package changes should get submitted here for review and testing first.

REPOSITORIES REMOVED BY ADMIN DUE AS ANNOUNCED

Tools used for gathering and analyzing system information.

The packages here are used for publishing to openSUSE:Factory.
They are also used for curious user to test latest and greatest features available in the OpenJDK world.

This is the Java:packages project. Its main purpose is to serve as development
project for packages around the topic of Java in the openSUSE:Factory
distribution.

This project also provides *unofficial* backports of newest packages to
current latest openSUSE release. The packages are *not* tested and might
randomly break

This repository contains applications and libraries which belong to the KDE Release Gear bundle.

KDE:Distro:Factory used to contain KDE 4.14 packages. Nowadays it only contains packages that will be removed in the future.

The KDE:Extra repository contains additional packages maintained by the KDE team that are not part of KDE Applications, Frameworks or Plasma. It is made available using the Yast Community repositories list. It contains only stable versions of software.

Contains KDE Frameworks, Plasma and related packages.

This project contains packages of Frameworks and Plasma 5 libraries and applications.

Plasma 5.8 and Frameworks 5.32.