The hybrid drivers are for laptops which can switch from intel to nvidia. The ‘video-nvidia’ is the actual unfree (nvidia) driver and with ‘video-linux’ it should use the free nouveau driver for your nvidia gpu.
The commands @Keruskerfuerst tells, show you which driver is installed ( -li ) and which could be installed on your system ( -l ).
If you want to play games the unfree drivers were preferred. For only office tasks the free drivers are enough.