I’m not Eastern Catholic myself but from what I studied from several scources (not all reliable, I have to admit), Heaven and Hell are even in Latin Theology not believed to be strictly places- after all we have been to space and God is not in the sky nor are the saints. Heaven is just metaphorical name. Souls probably exist in different view than we can ever understand during our earthly lives therefore comparing heaven to state of soul might be the right idea- however in sense of soul it can also be “real place”, it just isnt “real place” for us on the Earth. After all there is no time in heaven and therefore it doesnt exist in same dimension or it doesnt exist in the same way as this world. This is mostly my opinion formulated from what I’ve read about, nothing dogmatical nor authoritative, so if anyone feels like I made mistakes please let me know.
EDIT: As I just found out, Catechism of Catholic Church defines both Hell and Heaven as states of soul, not places. Therefore Latin theology too believes that heaven and hell are states of soul. Of course, it has been portrayed as place in history (never believed to be by scholars or domgatically defined to be so), but that was to express what people could not fully understand back then- not that we can now, but we are tiny bit closer.