Graphics card driver update Intel HD Graphics 620?

Have an Acer Aspire E5-575G laptop and absolutely need the latest driver for the graphics card. Windows says that the latest drivers are installed. Intel says this:

And when I go to the manufacturer. I don't find Acer to install graphics card drivers. Where can i install this damn driver? Need help with that.

First of all the big question: why is the latest driver necessary? Either the use that the manufacturer delivers or what may be pushed over Windo's update. The manufacturer drivers do not always work on laptops, since the device manufacturers make corresponding adjustments (e.g. Even if a dedicated graphic is installed). Even older drivers are enough, especially at Intel.