Any cellulose based paint will act as a good paint stripper for any oil based paint if it is applied wet enough for the solvent to still be active. The solvent in wet oil base paint is not active enough to have an effect on dried cellulose paint. The word "solvent" is a clue – it indicates a fluid that dissolves other substances. Different solvents dissolve different substances. Acetone (the usual one in cellulose) will attack many plastics (don't paint your plastic kit with it) and the residue that oil based paints leave when dry.
The issue is now confused because modern acrylics are a category of their own (water plus alcohol plus summat), and anyway, paint manufacturers are reluctant to tell anybody what is actually in there, so a lacquer that is perfectly good over a selection of automotive colourings, acrylic or cellulose, might, or might not, react with enamel. Depending on the enamel, and what is in the lacquer and if spraying, just how dry it is when it lands on the painted surface.
To avoid brush marks, go to a proper art supplier and get a set of good soft brushes. I like the flat type for large area and round for smaller details. And clean them after use. Stiff bristled brushes are good for artists artistically putting texture into their efforts. Texture is the one thing that we really don't want, so soft bristles.