Lenovo's web site is especially frustrating. They expect customers to know the differences between ThinkPad, IdeaPad, Yoga, etc, and then between the subdivisions like ThinkPad E vs P vs X, etc.
It would be far more customer-friendly if Lenovo made it very easy to say, show me all 15 inch laptops with any dedicated graphics card, and let's go from there.
Almost all laptop makers' websites are absolutely horrible. The worst I've seen is Dell's, where for some reason every ~10 seconds a distracting popup jumps into the screen. And the device comparison feature is useless, it just shows the same summary as usual but side by side. I had to look for minutes to see that a price difference between two models came from the 13" and 15" size difference...which was a single digit difference in a ~10-item list without any highlighting.
It's weird how manufacturers are imitating Apple at every step unless it's an improvement in UX.
It would be far more customer-friendly if Lenovo made it very easy to say, show me all 15 inch laptops with any dedicated graphics card, and let's go from there.