Once again I am duped by a no-data USB cable.
Treedix USB Cable Tester with 2.4" Color Screen for eMarker Reading, PD 3.0/3.1 Detection, Resistor and Continuity Check, Compatible with Lightning, Type-C, Micro-B 2.0/3.0, and Mini-B Cables

@dynom That is a nice one. I already have the simpler version that @oxapentane suggests.

It turned out to not be the cable, but my e-reader not playing nice with those newfangled USB 3 ports.

Putting a hub in between did help though. I was already wondering, quite sure I have eliminated all the no-data micro-USB cables from my home.

@Dany @oxapentane I've heard that before from e-readers being picky.