Can't unload to my SparkFun Qwiic Pro Micro from Arduino IDE

There are several things to also check:

Drivers Pro Micro & Fio V3 Hookup Guide - SparkFun Learn

FAQ Pro Micro & Fio V3 Hookup Guide - SparkFun Learn

Finally, this thread/steps worked for someone else: How to load Arduino sketch on SparkFun Qwiic Pro Micro - USB-C (ATmega32U4) from Apple Silicon Mac - #5 by zachrattner