I used to be big on sola scriptura but the church that Jesus established would have had to rely on tradition and John says in his gospel that there aren’t enough pages to write down all the things Jesus said and did.
Even as a Protestant I believed that the Holy Spirit can and does guide people to do and believe what is right in Gods eyes, so why would the Holy Spirit not be doing that for “the bishop of Rome” or any other bishop or priest for that matter. This is not to say that becoming a priest magically makes you righteous but devoting your life to our Lord in actions and in prayer would likely increase your righteousness. We also can see throughout history signs and wonders that have been performed through priests and bishops in accordance with holy scripture.
In Acts 2:42 it says “They were continually devoting themselves to the apostles’ teaching and to fellowship, to the breaking of bread and to prayer.”
Acts 2:42 NASB2020
This passage sets a scriptural precedent for holy tradition. In fact the canonical scripture wouldn’t have even existed at this point in church history and it was the Roman Catholic Church that came together to canonize the scripture.