Is the 2K screen worth it over a 1080p 16-inch laptop?

Yes if you read a lot of text or work in split windows. At 16 inches the extra sharpness is noticeable on documents and spreadsheets. If you mostly watch video, a 1080p panel is fine and easier on the battery.

Can it handle gaming?

Only light and older titles at low settings. It uses integrated graphics, so modern games will run poorly. A laptop with a dedicated GPU is the better choice for gaming.

How is the battery life in practice?

Expect a full workday of light use, less with the 2K screen at high brightness. Heavy multitasking or video streaming will drain it faster than the all-day claim suggests.

What comes in the box?

The laptop and the GaN power adapter. HP does not typically bundle a mouse or sleeve, so plan for those separately.

Is the GaN charger a real advantage?

It is smaller and lighter than the barrel chargers many 16-inch laptops still ship with, which makes it easier to carry. Charging speed is comparable to a standard adapter of the same wattage.

Who should skip this laptop?

Buyers who need portability above all, or who edit video or play modern games. A 13- or 14-inch model or a laptop with a dedicated GPU fits those needs better.