one other note for hardware acceleration support;
(unless it has changed recently) in windows, plex will use whichever gpu is configured for the default/primary display.
that means if the intel is the default display, then it will use that gpu. conversely if the nvidia is the default display it will use the nvidia gpu.
You can choose which display is the default/primary, by clicking the desktop > display settings > click whichever display screen # at the top, then scroll down to ‘make this my main display’.
You will very likely need a physical display connected to each gpu to do this.
