Especially given the type of cooling design and the flagship CPU, this model should have been directly compared to the Zephyrus Duo 15 or Duo 15 SE. If you search 'Duo' or '5900hx' and add the Duo 15 SE to the charts, this new 17in model does not look real great in many tests. And when you're talking close to $3000usd or more in the American market, you also need to look for extras. You cannot just say it's got a fast chip and that should be enough.
I own a Duo 15 SE. I sadly couldn't get the 4K model that is rarer than iridium it seems, but the FHD 300 panel and a 3080 are now available if you watch closely. If you actually use it in a battery friendly configuration it can give over 6-7 hours with BOTH screens on, or 7-10 hours with only the main screen on. (Silent mode, panel 60fps, iGPU locked)
Plainly the S17 at 1440p gives more workspace than the Duo 15 SE, but it loses the half-height secondary screen which supports multitouch and pen input....especially against the 4K/120 model the S17 is not a great workstation for the price. When plugged in the CPU beats the 5900hx in single core and loses in multicore, that's a wash. I'm not 100% certain but I think you lose more performance on battery with the S17 than you do with the Duo 15 SE, that is reflected in the actually good battery life under load.....however the Duo 15 can run on 100W PD fairly well, which means you can run it off a 12V vehicle plug with appropriate adapter. You can also run it on a large high end usb-c battery pack.