Adobe Premiere Rush OpenCL Support on Radeon, and question about Quality/Size of GPU Acceleration

Hello, this is a question post to Adobe staff or people in the know;

Firstly:

Is there a plan to support AMD Radeon desktop GPUs, such as my RX 5500 XT, in OpenCL for Adobe Premiere Rush for Hardware Acceleration, or is this just limited to the Proffessional models listed here.

I would like to know because I am interested in Hardware Acceleration for my projects, and would potentially be purchasing new hardware to accelerate my projects.

Secondly:

I have heard that GPU acceleration in applications such as Premiere Rush can reduce the quality of exported videos, or increase their file size versus software rendering. So I would like to ask whether it would be worth it for me to speed up my project by purchasing a compatible GPU or keep using my Ryzen 9 3950X processor (which is not slow, by any means).

Thanks for your advice