Lenovo Legion 5 Laptop

[TheHitMan-1973]

Thinking about buying another Lenovo Legion 5 Laptop

Spec below

MPN 82JU002XUK

Windows 10 64
AMD Ryzen 5 - 5600H
15.6 FHD Display
512 SSD
Nvida GTX 3060

It only has 8GB 3200MHz DDR4 RAM is this onboard RAM ? Could this be upgraded to 16GB ?