If you look up MTP transfer on MacOS, you’ll likely come across OpenMTP or MTP For Mac. If you want something basic and included, then MacOS comes with Image Capture. No features really, just copy and delete, but sometimes basic is all we actually need.
For the GoPro, go into settings and set USB to MTP mode and it should show up in Finder. From there, it’s easy to copy and/or delete photos