Which project do you think should KDE approach?

Hydrogen (http://hydrogen-music.org/)

Natron (https://natrongithub.github.io/)

KtikZ (http://www.hackenberger.at/blog/ktikz-editor-for-the-tikz-language/)

TuxClocker (https://github.com/Lurkki14/tuxclocker)

Luminance HDR (http://qtpfsgui.sourceforge.net/)

LMMS (https://lmms.io/)

Rosegarden (https://rosegardenmusic.com/)

Spectral (https://gitlab.com/b0/spectral/tree/develop)

OBS Studio (https://obsproject.com/)

QtPass (https://github.com/IJHack/QtPass/)

KeePassXC (https://keepassxc.org/)

QGIS (https://qgis.org/en/site/)