No problem’s around my desktop (KDE/X11) yet with nvidia 2080Ti on the newest Nvidia Driver.
Maybe the nvidia driver issues only related to gaming? I don’t know, I report back then.
But at the moment im fine here.
Edit: KDE 6.5.3 Transparency/Blur (constrast bug) effects under X11 are fixed now with this update. I have finally my good looking Desktop back 
Edit2: Sadly the favorite Icon’s are still reduced in its size and not fixed yet 
Edit3: Gaming is fine, steam games and non-steam games both works flawless.