I listen to NPR station in the car. Anecdotally, very little of the content is true journalism; much of it is effectively op-ed. That's not necessarily a bad thing, provived you understand what you're consuming. The state-funded tag is a bit much. But to claim NPR is a pure journalism play isn't accurate either.
By definition they're state funded, but not state ran. The implications from the optics though may result in extreme takes. Though we could assume there's at least some influence the funding has.
In the end, erring on the side of overestimating the amount of government money going to NPR, it appears to be less than 10%. That is substantially less than a whole lot of other companies get, and those companies aren't considered "government sponsored".