"Ortho" film usually means it IS spectrally sensitized (with sensitizing dye) for green wavelengths, in addition to blue. Non-sensitized emulsion is blue-sensitive only. Those are also available for some special purposes such as copy films as mentioned before in this thread.

All emulsions are UV sensitive also, unless there is UV absorbing overcoat.

If you like the "look" of ortho film, you can use cyan filter with pan film, but of course you still lose the ability to develop in red safelight.

But why bother as there are ortho films available? What we really lack is a medium-speed ortho film (ISO 200 or 400), but OTOH those were not available "in the old days" either.