thanks so much!
that got the device recognized in windows... but alas, the command fails for some reason:
C:\Users\IEUser\Desktop\platform-tools_r33.0.3-windows\platform-tools>fast
s "Android Fastboot" flash boot magisk_patched-24200_wziur.img
Warning: skip copying boot image avb footer (boot partition size: 0, boot size: 17901568).
Sending 'boot' (17482 KB) FAILED (Write to device (Unknown error))
fastboot: error: Command failed
Now I'm afraid to reboot the device in case it's bricked...
NOTE: the minimal adb version didn't even get that far, I read elsewhere getting a newer version of the platform tools is necessary for newer devices:
https://dl.google.com/android/reposi...st-windows.zip