Russia has already used them in Ukraine... No reason to doubt China in that regard.
My point is that for all the commentary regarding healthcare expenditures and cost effectiveness/QALY etc, no such accountability is applied to the defense budget (or the aerospace one for that matter for years. Look at how much we spent on NASA and the space shuttle over the years vs what SpaceX is charging now).
Considering we spend more on our military than the next several countries combined, why weren't we the first with a hypersonic missile? Why is China taking the lead on things like
railguns etc