A simple answer to your question is NO. If your glosscoat is enamel and you run a solvent type wash it will lift and wrinkle the paint, specially over large areas.
You need a barrier when using a solvent wash over enamels. I would not risk it over lacquers either just in case the milder wash reacts on the lacquer. On cured acrylics you may use an acrylic wash without a barrier as these two do not react the same as solvent types.
I use Future all the time as a barrier on my enamels and it works just fine. It just needs to cure at least for a day or two.
An alternative to future is Alclad Aquagloss which is water based and cures faster than Future.