Good news, your camera is supported by SILKYPIX! You can process your RAW photos taken with the GoPro HERO9 Black camera with SILKYPIX Developer Studio Pro11 11.0.5 or later.
GoPro Hero9 Black Features
Includes HERO9 Black camera, carrying case, rechargeable battery, curved adhesive mount, mounting buckle + thumb screw, USB-C cable and free SD card.
RAW Conversion & GoPro Hero9 Black
SILKYPIX Developer Studio 11 and SILKYPIX Developer Studio Pro11 added support for this camera as of July 18, 2022.