What stone you use is totally dependent on the steel used in the knife.

Today’s 3rd Gen. super steels like Bohler 390/Elmax, CPM S110v/M4, CTS 204P all have harder carbides, since they’re designed for high speed tool bits found in end mills and the like, where tip deformation is a problem.

Like you said above, diamond plates are preferable, since typical stones won’t be hard enough to break down 3rd Gen. carbides.

For regular 1095, S30V, or VG10, traditional stone material is fine.

Chris