https://github.com/KDE/krita/releases
No such release, no announcement, no homepage update, GitHub is just a mirror. https://krita.org/en/download/krita-desktop/ https://invent.kde.org/graphics/krita The tag looks like a mistake considering it is identical to 4.4.3 release date.
Upstream quote: > Note: there is no Krita 4.4.4, that version number was created > only for the release on the Epic store.