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 "data") because it's assumed USB cables carry data. However, Amazon sellers may describe it as "sync" in their products title.