The HP Victus 15-fb3622nz (BT1G9EA) comes in the standard configuration with 16 GB RAM, which is typically delivered as a 1×16 GB module, which means: one slot is occupied, the second remains free.
The notebook cannot be charged via USB-C. Due to its higher energy requirements, it needs a dedicated charging port with a power supply unit that typically delivers 150 watts or more. USB-C on the device is mainly used for data transfer and connecting monitors via DisplayPort, not for charging during operation. Charging via USB-C is only possible when the device is switched off or in sleep mode, but not during active operation. Monitors are recognised via USB-C as the connection supports DisplayPort functionality.