Not sure if the libinput event system natively supports acceleration of wheel events. If yes, it would need to expose a setting in systemsettings. If not, it could be worked around either in individual applications, or in Qt.

This is especially suitable when browsing in the internet with e.g. Firefox.

I don´t know the acceleration curve.

Nowadays computer mice have an adjustable dpi resolution, so it is not necessary to implement this anymore.