Paul, who never met Jesus and argued with Peter, made it up as he went along, usurping Peter’s primacy and even Jesus himself. So yeah, take Paul with a grain of salt.
You might be surprised to know that before being called Paul, Paul was known by the name Saul.
The Paul of the Bible met the 'resurrected Jesus' according to 'gospel writer Luke' at Acts of the Apostles 9.
Luke, please see Acts of the Apostles 13:9, lets us know Saul became known as: Paul.
Paul's name was Saul before his conversion as found at Galatians 1:13-24.
Since Paul was the 'apostles to the nations' the name Paul could be easy for using among those non-Jews.
Acts of the Apostles 15 starts out about Paul and Barnabas.
Please consider how Paul handled a problem in Antioch at Acts of the Apostles 14:25 to Acts of the Apostles 15:2.
Since Paul was to take the lead in speaking to the uncircumcised gentiles Paul could have thought himself qualified in dealing with the non-Jews to resolve the circumcision issue.- Galatians 2:8-9.
When the issue was Not resolved Paul went along with the elders according to Luke at Acts of the Apostles 15:22-31.
Those spiritually older men ( included Peter) assigned Paul to be one of their messengers.
Paul took the lead in showing them honor- Romans 12:10. Paul remained humble - 1 Corinthians 15:9-11.