Hot take: Charon is not a moon of Pluto.
Instead, Pluto and Charon are, collectively, a dwarf double-planet that share four moons.
I personally don't think that's a controversial take at all. Charon definitely does NOT purely orbit Pluto, but rather Charon and Pluto each orbit the center of mass between them (which is closer to Pluto because it is bigger), which qualifies them to be a binary system.
And those four moons don't orbit Pluto either. They orbit the center of mass created by Pluto and Charon.
Stuff you read might say otherwise, but I think this would just be due to the fact that we didn't have a clear picture of the Pluto system until 2015 when the New Horizons probe got there to take a closer picture, and we may not have realized before that Pluto-Charon system was a binary system. And it takes awhile for all the textbooks to get updated and for even people in the field to be aware of the reclassification.
Seriously!! Look at those moons!! They are crazy!
The Earth-moon system is actually ALMOST a binary system as well, but the center of mass between the earth and the moon is still within the earth so it doesn't qualify as a true binary system. BUT it is the center of mass (the yellow dot in the first picture below, and the green star in the second) of the Earth-moon system that orbits the Sun. The earth kind've wobbles around that point as we make our way around the sun.