Hello FindJoel!
Thanks for reaching out to the Apple Support Communities. I see from your message that you’re unable to use the Flashlight shortcut on the lock screen. The latest iOS 13 update is iOS 13.1.2. In iOS 13.1.2 the issues where the flashlight may not activate and the camera may not work were addressed, as you can see in this article: About iOS 13 Updates.
If your iPhone is not yet up to date, be sure to have a current backup of your iPhone data before updating. Having a backup of your data is like having an insurance policy, you don’t plan on using it, but it’s great to have if you need it. If you haven’t backed up your iPhone before, here’s how: How to back up your iPhone, iPad, and iPod touch.
To update wirelessly, follow the steps under, “Remove and download the iOS update again,” in this article: Get help with over-the-air iOS updates. To update using iTunes, be sure to follow these steps, Update your iPhone, iPad, or iPod touch.
If your iPhone is running the latest update, and the issues are still occurring, Contact Apple Support for more assistance.
Enjoy the day.