What applications are missing in OM Lx 4?

BlueGriffon is now also available for Rock/Lx 4.0 in unsupported/testing repository.

To install from Konsole:

x86_64:
sudo dnf install bluegriffon --enablerepo rock-testing-x86_64-unsupported

For znver1:
sudo dnf install bluegriffon --enablerepo rock-testing-znver1-unsupported