Migration from 12" MB to 2020 MBA (Intel) Fail
The problem is your cable

AmazonBasics USB Type-C to USB-A Male 3.1 Gen2 Adapter Charger Cable

Emphasis mine 
You need a proper USB cable, not a charger cable. A charger cable only provides the connections to send power, not data.
A USB cable for data will typicaly not need a descriptor (like &quot;data&quot;) because it's assumed USB cables carry data. However, Amazon sellers may describe it as &quot;sync&quot; in their products title.