I know a decent number of Orthodox. They all, to varying degrees, are convinced that the Catholic Church ins in schism and afflicted with heresies. Much the same ways we view them. However, all of them think the NO is a mess. Some of them think none of our sacraments are valid, but, while most do, all think the the TLM is an authentic liturgy that could be practiced by Orthodox while the NO would not be. They think in terms of us joining them though.