Premiere Pro CC 2019 using integrated GPU (Intel Graphics 630) instead dedicated (RTX 2080 Max-Q)

More details please ... the OS/CPU/RAM that works with that RTX2080 Max-Q ...

On checking up on that card, it's a notebook card a bit less capable than the "regular" mobile RTX2080, with reduced clock speeds and power consumption among other things ... still, listed as slightly faster than a mobile RTX2070.

A couple notes though as there often misconceptions as to how Premiere is coded to work with GPUs. For general encoding, the discrete GPU isn't used much at all. Premiere reserves calling on a discrete GPU for those things on the GPU Accelerated Effects List ...

GPU Accelerated Effects: https://helpx.adobe.com/premiere-pro/using/effects.html

Such things as Warp Stabilizer, Lumetri and most other color effects, and major resizing of the image.

So if those aren't involved at any point in a sequence, the discrete GPU will not work very much.

Onboard graphics chips in laptops can get a very different use. In some laptops, the CPU is designed to rely on the onboard chip for much decoding/encoding operations ... and that is outside of Premiere's control. Which is why at times the discrete GPU isn't doing anything and the onboard graphics is working away. That onboard graphics is seen by the CPU as an extension of itself.

Some laptops can be set in the BIOS to disable the onboard chip, putting all GPU use through the discrete card. Many can't.

Neil