Allocate more ram to HP ProBook 455 G7 graphics unit?

I have a Lenovo IdeaPad 5 with 16GB Ram and the AMD Ryzen 7 4700u APU. I could assign this APU in the BIOS to 512MB, 1GB, 2GB and 4GB. By default, 512MB was set, which was not ideal for gaming.

Now I have discovered this HP Probook with Ryzen 5 4500U and find the price and upgradeability remarkable and would like to recommend it to a friend, but I would like to know whether you can also assign more memory to the graphics unit of this notebook.

You can always

The Ryzen 5 3xxx are usually up to 2GB, depending on the manufacturer, more