j00jitsu would like a dedicated app to switch predefined layouts, but I agree this is already backed in KDE, in the already existing app, search for “Look and Feel” or Global Themes in the application menu (which points to /usr/share/kservices5/kcm_lookandfeel.desktop), just need to install additional Global Themes from KDE Store, It’s all there Global Themes - KDE Store (or under the button at bottom right, Download new Global Themes in Look and Feel), and then select one.
Some suggestions to install for various popular ‘layouts’:
- Mac like:
- Windows like:
- Ubuntu like:
But in the end if some of these were available directly on a fresh install that would mean people would blame Manjaro the day issues would occur from these, or they get removed, and the support burden would be on Manjaro team.