Alright you say no, but let me give you the options.

If yes, then why do you give an obscure pseudoepigraphical text authority over what the Scriptures actually say? (This question is relevant even if you're not protestant)

If no, your Orthodox/Catholic church does not teach the pre-tribulation rapture and you are in error according to them.

If you don't fall into the three buckets above, you're likely from a cult and in error about Jesus and the Gospel.

Or if you're not a believer but only a scholar, then you'd know about the difference between the Latin and Syriac versions and the dating controversy of the Apocalypse of Pesudo-Ephraem. And also that it's an obscure text that was neither taught from nor notable until recent times due to controversy regarding the error of the pre-tribulation rapture.