That said, if you're at the point of pulling your hair out, you can navigate to Settings > Apps > Google Play services > App ...
If the Reddit app on your smartphone isn't working, you can usually fix it by force-restarting the app or your phone.
If you have been experiencing consistent issues with your Xbox App on PC, then I understand your frustration. I could not get my Xbox App to load for about a year. It would just consistently get stuck ...