Only in the sense that in their youth they agreed with what the Catholic Church had decided more than 1000 years before they were born. Later they decided to throw out several books and parts of books, and tried to throw out several more, which contained passages which contradicted their novel teachings.
As St Augustine said , "I would not believe in the Gospel myself if the authority of the Catholic Church did not influence me to do so."
Against the letter of Mani, 5,6, 397 A.D.
Christ is the “Original Word”. He founded the Catholic church 40 to 70 years before the gospels were written and 350 years before the Pope and the Catholic bishops decided to recognise them as scripture. You recognise their authority to have done this. Why do you go to someone else for authority to interpret the books they have written, edited, published and preserved for so many centuries before your spiritual forebear Luther dreamed up the idea of “the Bible alone” to give some basis to his organisation after it was cut off from the Church which Christ founded?
The Protestant church and the Catholic church were the same church for the first 1500 years. Not until the reformation did they split. During the time of the apostles, division existed and that was the reason for the Council of Jerusalem.
Bible differences:
At the time the Christian Bible was being formed, a Greek translation of Jewish Scripture, the Septuagint, was in common use and Christians adopted it as the Old Testament of the Christian Bible. However, around 100 A.D., Jewish rabbis revised their Scripture and established an official canon of Judaism which excluded some portions of the Greek Septuagint. The material excluded was a group of 15 late Jewish books, written during the period 170 B.C. to 70 A.D., that were not found in Hebrew versions of the Jewish Scripture. Christians did not follow the revisions of Judaism and continued to use the text of the Septuagint.
Protestant reformers in the 1500s decided to follow the official canon of Judaism for the Old Testament rather than the Septuagint, and the excluded material was placed in a separate section of the Bible called the Apocrypha. Protestant Bibles included the Apocrypha until the mid 1800s, but it was eventually dropped from most Protestant editions.
The Roman Catholic and Orthodox Churches continue to base their Old Testament on the Septuagint. The result is that these versions of the the Bible have more Old Testament books than Protestant versions. Catholic Old Testaments include 1st and 2nd Maccabees, Baruch, Tobit, Judith, The Wisdom of Solomon, Sirach (Ecclesiasticus), additions to Esther, and Susanna and Bel and the Dragon which are included in Daniel. Orthodox Old Testaments include these plus 1st and 2nd Esdras, Prayer of Manasseh, Psalm 151 and 3rd Maccabees.
The Protestant, Catholic and Orthodox New Testaments are identical.
twopaths.com/faq_bibles.htm
The teaching of the differences seem consistent through multiple sources.
When you say the pope and the bishops decided on what to adopt, you exclude the fact that the future Protestants decided too. They were the same church then. They only had different labels. Don’t get fixated on titles when you are talking prereformation for they were all one body within the Catholic church.
St Augustine would not believe in the gospel if not for the Catholic Church? I’m sure there is a lot more to it then just that. My beliefs stem from Jesus Christ and his word, not from anyone church. They may provide clarification or some additional insight, but my faith established before going to church.