uming the Sapir-Whorf Hypothesis to be true, is there any aspect of perceived reality that is universal?

There is indeed a perception of reality which breaks through the linguastic barrier. Many (monolingual) people of different languages can have a perception of reality which overlaps and evolve a Universal Picture. However, the EXPRESSION of the reality will or may be slightly or vastly different, depending, amongst others, the linguastic capability and the richness of expressions possible in the language.