Hello ,
Thank you for posting in the community your question regarding the RX 5500 XT compatibility with Path Tracer. The card needs to be DirectX12 compatible and have DRX capabilities. It seems like only the 6000 series or above meet this criteria, and you would need to get one of those cards or better to use the Path Tracer.
Here are the Path Tracer requirements:
https://twinmotionhelp.epicgames.com/s/article/Path-Tracer-Requirements
Twinmotion System Requirements:
https://twinmotionhelp.epicgames.com/s/article/TwinMotion-System-Requirements
Hope this helps.
Kind regards,
Vincent B.