XPS 2019 and Adobe Premiere 2020

Since there is no such model "XPS 2019"  I have no Idea what you mean.

Ancient XPS 400 from 2006 works with Pascal Based card up to 1080TI.

Adobe Premier needs GPU to work well.

You can spend upwards of $7000 on a GPU to address that.

Microsoft Windows 10 (recommended versions 1809, 1903)

Adobe’s Creative Suite (After Effects, Photoshop, and Premiere),

Adobe says that very large projects can see up to a 10x performance gain from Mercury. Nvidia says “performance gains of up to 70 times” for visual processing tasks.  Nvidia says that this is because CUDA and the Mercury Playback Engine are doing so much of the visual computing work, “the CPU is free to continue to manage other system and application tasks, and to efficiently manage background processes.”

https://www.youtube.com/watch?v=GrConlnQd4g

Adobe and NVIDIA co-developed the Mercury Playback Engine, which uses NVIDIA GPUs and the NVIDIA ® CUDA ® parallel computing platform to enable real-time editing and faster performance on final‒rendered exports.

• NVIDIA GTX 970 or AMD R9 290 equivalents or greater
• HDMI 1.3 video output (directly on your video adapter)
• SLI is not supported; at least one GPU must individually meet these specifications

Processor: Intel® i5-4590 / AMD FX 8350 equivalent or greater

So any current Core I7 XPS 8930 with at least RTX 1660 should be fine.

• 9th Gen Intel® Core™ i7 9700
• Windows 10 Pro 64-bit English
• NVIDIA® GeForce GTX® 1660Ti 6GB GDDR6
• 16GB DDR4 at 2400MHz; up to 32GB
• 1TB 7200RPM 3.5" SATA HDD