It's the smaller things. Obviously MacOS won't have trouble with mac hardware, but my work macbook can't wake up my monitor through HDMI, or chain DP displays, or connect to my phone's storage through USB, etc...
What phone are you having issues with? Every android phone I’ve used will communicate with adb. iPhone has never used USB mass storage, and support for that has nothing to do with MacOS.
Can’t comment on the daisy chain issue, I just learned that was a thing.
Screen will remain black. Or, screen will power on, display nothing. Or, screen will power on, mouse cursor will appear, but no password prompt.