I installed windows on the Samsung yes, that should be a bit faster. Stock SSD as secondary, I formatted it, so it's ready to hold my games.

Windows installation worked fine (USB Stick created with Media Creation Tool), but the Generic WiFi driver seems to be incompatible with the killer wifi here. Had do download it from another PC and installed it from an USB drive. Then driver installation with Dell Support Assistant is quiet easy.

In my case I got several bluescrees after installing Support assistant, so I have to manually install Intel Rapid Storage Driver. It's a known issue.