a large 17.3-inch monitor for getting work done comfortably without the need for external screens

While the brand is very good from what I hear, this particular statement is total nonsense. External screens are usually meant for overall comfort. And if you care about overall comfort and ergonomics, you would 100% buy an external keyboard and an external monitor (the latter ideally mounted on a monitor arm).

Basically, don't be lured into actually using just the notebook for desktop use, even if they advertise the best possible keyboard and screen. Instead, buy proper external peripherals and get a "thank you" from your wrists and neck in 10 years.