Others have correctly answered in the affirmative, but haven’t said why.
The reason things float is because there’s more force on the bottom face than the top face. This upward buoyant force counteracts the downward force from the weight of the object.
Why does the bottom face have more force on it? Because the air is just a little more dense than on the top face, and has a higher pressure. The bottom face might have 14.7 psi of air pressure pushing it up; the top face, (say) 100 feet up, has 14.65 psi pushing it down. It mostly cancels out, but that tiny difference over a large surface accounts for all the lift.
It doesn’t matter at all what’s inside the balloon. This only contributes to the weight; the internal arrangement doesn’t matter. Although for the record, given the choice between a hydrogen balloon and a prototype vacuum balloon, I’ll go with the hydrogen.