@scofus Nice one. This is were I run the powershell (Windows 11 - Linux slightly different) for adb fastboot from:
C:\Users\username\AppData\Local\Android\Sdk\platform-tools
This is with the latest version of Android Studio.
All my devices get picked up in Windows as Android devices and connect without issue after installing Android Studio. I always had issues just installing specific USB, ADB and fastboot drivers for devices.
What I have found, much like PC's is as you have done is to persevere. You worked it out in the end, good luck with UT.