SUMMARY There is no way to alter the touch and hold for secondary click length. SOFTWARE/OS VERSIONS NixOS 24.11 (unstable channel) KDE Plasma Version: 6.0.5 KDE Frameworks Version: 6.2.0 Qt Version: 6.7.1
That's correct. At the moment every app needs to implement this themselves; we can't impose "press-and-hold to see a context menu" at the KWin level or else it would break every app that does have its own press-and-hold setting. This means every app gets to choose its own definition of what constitutes a press-and-hold. This is indeed very messy. Ideally there would be a central threshold setting and every app would honor it. We'd need to create that setting and then port every app to use it. Not impossible, but quite a significant project.