It most certainly is. It's not what many badly-misinformed media sources told you it meant. But that's a different matter.
I remind you that the Internet has existed for several decades, all but a couple years of which were free of net neutrality restrictions, and yet none of the rather ludicrous sky-is-falling predictions of its proponents have ever come to pass. In fact, casting our eyes around the world, the only nations where the Internet can be truly said to not be free are those in which the government has enacted laws and regulations which, like net neutrality, give it blanket authority to regulate the internal workings of Internet providers.
Happy to oblige you. Many US ISPs engage in what most people, including myself, would consider deceptive advertising of rates which fail to include these so-called "hidden" fees. However, this is hardly unique to this industry: the airline, banking, and auto-loan industries are also infamous for this. The FCC -- like all other executive-branch agencies -- merely enforces the laws that Congress enacts. If Congress wishes to step in with additional legislation, that would be one solution, though I believe the proper venue for enforcement here is the FTC (which can address such practices for all industries, and which already holds legislative authority for same) rather than the FCC.
Prior FCC chair Tom Wheeler's "solution" of reclassifying the entire Internet as a common carrier was government overreach of elephantine proportions: not only unconstitutional, but one which would eventually lead to horrendous consequences for consumers. Thankfully, it is gone -- but had Pai not repealed it, the Supreme Court would have done so eventually. In fact, the only reason it survived the first Supreme Court challenge is because of Gorsuch's recusal, as he had originally heard the instant case.