“DX Reverb Light” from AnwidaSoft is a “stereo reverb” in the sense that it mixes a wee bit of left with right and vice versa, (crossover), whether you like it or not. Whereas Gverb does not crossover. In a real reverberating room there would be crossover, so Gverb reverb not having crossover is not natural sounding, (but you could add crossover if you wanted).
Freeverb also has crossover whether you like it or not.