Dedicated video memory?

Why can I not use the whole graphics memory but only 128mb

I would really like to play a decent game but it doesn't work that way, because my laptop only uses the dedicated memory instead of the 8200mb.

Is it possible to change this somehow?

Hello how much RAM does your system have.

16 GB

11th Gen Intel (R) Core (TM) i7-1165G7 @ 2.80GHz 2.80 GHz

The internal graphics card uses the main memory as video memory as required.

But since it's an internal graphics card, you can't expect any miracles.