DeletedUser701 just tested this and I can confirm that no longer do I have to toggle the allow installs toggle in settings. It no longer gives that message 'for your security, this app isn't allowed to install apps from unknown sources' or redirects me to settings. It just says that I acknowledge that by installing this app I'm responsible for any damage to my device. Maybe this is a change in QPR1. I hope it isn't and this is a bug that will get fixed, because I really don't like this now. I want to be able to toggle installs on and off for the Files app in Settings. A bit of an alarming security risk in my opinion