I think Capture One has the ability to do something like "Send To" so you could send photos to Qimage that way. I'm not sure because I don't use Capture One. As for Affinity Photo, the issue with that software is that while they support Photoshop plugins, they only support editing plugins. They need to support file automation plugins and then the Qimage PS plugin would work. If more people are moving away from Adobe (again), it might be a good time for Affinity to look into adding that feature. But that would be up to them: nothing we can do from our end.
Regards,
Mike