If it was either co-written by Baranbas and Paul, or “ a set of lecture notes taken while Barnabas and Paul and Titus were speaking,” it would not necessarily sound like one of Paul’s letters to a church that he had established.
I can say that my notes of my college professor’s lections would not have given the same ‘sense’ as one of their lectures on the same topic that was written out.
And this is more of a report to the council in Jerusalem than a letter to a congregation.
To quote a great resource here...”Nope”.
Problem being that Paul was the apostles to the Gentiles , not the jews. Historically it was seen as a guide for Jewish converts
**And this is more of a report to the council in Jerusalem than a letter to a congregation**
I agree.