Used miniUSB to update the firmware on my PC Engine UperGrafx UGX-02 last night. It also uses it for dumping HuCards, digital screen captures, backing up save RAM banks, and a couple other little things.
It's a $400 optical drive emulator and digital video adapter for the old 1987 PC Engine and TurboGrafx-16 videogame consoles.
I guess you could say that I use microUSB every time I put my phone into my wireless charging car dock but that may as well be permanently tethered to the wireless charging dock since the whole point of a wireless charger is to stop plugging and unplugging cables.
Then there are PS4 controllers. Just like PS3 kept people using miniUSB for longer than they otherwise would have, so has the PS4 kept people using microUSB for longer than they would have. It is still the most-current Playstation, after all. Heck, the PS3 continued influencing people for years longer, since Playstation VR was introduced in 2016 with the PS3-style miniUSB Playstation Move controllers. At some point Move controllers updated from miniUSB to microUSB but it had to be 2017 or later and the vast majority of Move controllers you could find continued to be miniUSB to this day.