Hello @Britewood ,
Thank you very much for your suggestion. We agree that there should be an alternative to Wi-Fi to download software updates. Unfortunately, carrier decides whether download is supported over mobile data or not. Some carriers allow software download over mobile data and some don't. But ethernet is an very interesting option we have asked our R & D teams to look in to considering stability of the connection should be at par if not better than a Wi-Fi connection.
We appreciate your contribution to the beta program.
One UI Beta Team