That quote is specifically in reference to this flat device. I agree that with a laptop you can achieve a relatively ergonomic posture if you set it up the way

That quote is specifically in reference to this flat device. I agree that with a laptop you can achieve a relatively ergonomic posture if you set it up the way you describe, which minimises the "hunch" and strain, although you can do much better with some accessories. When I work away from home I use a laptop with a laptop stand ( https://www.therooststand.com/ https://www.therooststand.com/ ) and external HIDs. Of course, any good physical therapist will tell you that no hardware can offset the damage of long-term sedentary work. One might say that more active time is the best ergonomic solution.