QtSpeech is used in kmouth, kanagram, knotifications, ktextwidgets, knights, okular, snorenotify, konqueror, ktp-text-ui, ruqola, kalarm, kde-pim-runtime, kpimtextedit
QtSpeech still does not have a Qt 6 release. The Qt Company has told us that they are hoping to include it in Qt 6.4 There's some activity recently that reflects it https://code.qt.io/cgit/qt/qtspeech.git/log/ It's cool to see our own Jeremy is helping there already, but more hands and eyes (and if possible patches) are always welcome :) Cheers, Albert