Very much dependant on what happens to the frame once the decals have been applied...
I am far from a professional paint re-finisher so happen to listen to other opinions but in the past 5+ years this is what I have found
I know of at least one major re-finisher how regularly applies my decals and then oven bakes the clear coat with nothing but great results, on the other hand I know an equally big company who has nothing but problems when they bake the decals.
Basically I recommend that they are not oven baked, if you use a 2 pack clear coat or an air dry system this seems to be a favoured method
Alternatively apply the decals onto the final coat and leave them, meaning they can easily be replaced if damaged
Again this is dependant on the size of the decals and the amount of use/washing you intend once they are fitted
Hope this helps, always happy to answer questions as well as I can