I’m having an issue with UnityWebRequest on iOS 15.5 (probably other 15.x versions as well) that it seems to be stuck 'inProgress" forever. It seems a lot like this previous problem that was fixed but I’ve tried Unity version 2021.3.x and 2022.1.x and both still have this issue.
I’m not using ARFoundation either, just a plain web request with a timeout set. No return errors…