Yup. The giveaway is the dual speakers. The Galaga cabaret has a single 6x9 inch speaker. They also don't have the same control panel attachment hardware or location. It is slightly different. I have one of each empty cab sitting next to each other.
I bought the first 'Galaga' cabaret cabinet from a member on here, which turned out to be something else. I bought another cabaret cabinet from somebody on here that was advertised as a Pac Man cabaret, but it turned out to be a Galaga. The Galaga control panel does not fit on the 'dual speaker' version that I have. It is clearly different.
I am learning that there were a lot of variations on these cabarets, but very little documentation. It is fun to see different ones pop up here and there.