Suprisingly long time ago I wrote a post about the sorry state of fingerprint authentication on KDE. This post could be summarized as “don’t even bother”. I gave up on this enterprise and actually the situation got even worse later as the fingerprint sensor of my next computer – Dell 7210 – was not even supported by Linux drivers and fprintd.
So after abandoning this topic for some time I got another shot at checking out the topic again very recently.