My Swift monitor and stand came as a single piece. They can't be separated without tools. I wasn't concerned because the fancy packaging was obviously molded to fit the monitor/stand as a single part.
The NVidia G-Sync module is rated for 120Hz operation. Asus overclocked these G-Sync modules and fitted them with thicker heatsinks. Yes, it will tend to run hot at sustained 144Hz operation, the enlarged section on the back panel and the front bezels (which are all fitted onto a metal frame chassis) well feel quite warm to the touch.
This is not something Asus advertises. It doesn't appear to impede performance, nor does it appear to cause any damage to the panel (and the AUO M270Q002 V0 TN panel datasheet claims that the panel is stability rated for up to 110C operation under normal atmospheric pressure). I expect that the Swift's embedded logic boards (especially that overclocked G-Sync part) will degrade from thermal stress long before the display panel itself.
Try to position the monitor where it can get unobstructed airflow on all sides, don't tuck it into a corner or an inset desk/shelf/hutch alcove box thing. Not much else you can do.
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