The KDE Plasma Linux desktop environment is already a feature-rich desktop for both productivity and gaming, but the KDE development team has been hard at work adding ever more features to the DE and polishing the experience. One of the newest additions to KDE, apparently coming in Plasma 6.7 and no...
I don’t think so. It’s been around for a while but was unmaintained for a bit so it wasn’t compatible with Plasma 6. That’s why it was removed from the Debian repositories. It’s just been a case of someone who wanted to maintain it coming along. AFAIK it’s mainly aimed at Smart TVs.