No, light does not propagate through a glass vacuum tube in the absence of any medium. Light requires a medium to propagate, and in classical physics, it was believed that a hypothetical medium called the "ether" was necessary for light to travel through space. However, the concept of the ether has been disproven by experiments, such as the Michelson-Morley experiment, which showed that the speed of light is constant regardless of the motion of the observer.
According to our current understanding of physics, light can propagate through various media, such as air, water, or glass, due to the interaction of electromagnetic fields with the atoms or molecules in those materials. In a vacuum, such as in outer space, light can also propagate because empty space is not truly empty but is filled with electromagnetic fields.
In the scenario you described, where a glass vacuum tube is void of any matter or medium, there would be no means for light to propagate. The absence of any medium would prevent the transmission of electromagnetic waves, including light.