Your installing issues with the USB cable wouldn't matter.
DogWithAPhone Unable to resolve host "apps.grapheneos.org": No address associated with hostname
This error means your phone is asking your wifi or cell data connection:
How do I get to apps.grapheneos.org
It gets the reply: "never heard of it"
Try another wifi or turn off wifi and use cell data.
Do you have an apps or software for: DNS, VPN, ad blocking, malware blocking?
Because, this is a dns issue. You could have an app on your phone filtering dns requests before your phone asks the network.
Network could be a vpn you are connected to and thats the issue. Could try turning off a vpn if you have one.
If you're worried about that, look at nofications by dragging down from the top twice, you might see a number at the bottom by the person icon. Tap the number. These are the apps running in the background. Stop them while you test no vpn.