Not really. ?The JS8 encoding was changed in several ways such that an FT8 decoder can't decode it at all. ?And AFAIK currently the modifications aren't all documented sufficient to allow interoperable radio communication. ?I prefer to use modes that are publicly documented sufficiently that they can't possibly be considered obscured in any way. ?Such as FT8, where a full specification was published in QEX.
73, Ron, n6ywu