Oh, this wasn't on your end? Sorry, I thought it had to be, considering it occurred for me on 3 different networks and external DNS checker tools were confirming that there was a problem. I tried to avoid filing a bug, since I am not as familiar with these issues, but after days of not being able to work with flatpak and no responses on #sysadmin in irc (which is understandable), I went for it. I hope this has not caused too much of a disturbance. Thank you for your time.