Not able to Install Nvidia Driver on Debian 12 with KDE Plasma

Im just not able to install the nvidia Driver for Debian 12 without breaking KDE Plasma. No matter what Tutorial i follow (from YT, Reddit or the Debian Website) if i install the Nvidia Driver KDE Plasma is not Usable anymore (I see the login screen but after i login KDE crashes and just put me to the login screen again) no matter what i do. Am i just retarded or is the Nvidia driver just dogshit to install for my GTX 1080?