Back to trying to make sense of all the arguments.
Bishop -- epískopos, "overseer",
1 Tim. 3:1-2, 4:22, Titus 1:7, 3:15
is not really the same as
presbýteros --
among the Christians, those who presided over the assemblies or individual churches
In the Jewish system there were the "presbyteros" and the "chief priests". The "chief priests" being of more authority than the "presbyteros". (Mark 8:31, 14:53 etc)
A bishop seems to claim authority dating back to the apostles-- an overseer of the churches.
Whereas the "presbyteros" is regarded more as the "pastor" of the assembly or local church.
A bishop is the one ordained deacon, then pastor and then bishop who is understood to hold the fullness of the (ministerial) or apostalic authority, given Biblical responsibility to govern, teach and sanctify the Body of Christ. Pastors, deacons, and lay ministers (what we now term "elders") cooperate with the bishop who oversees all the assemblies under his authority.
The Adventist church doesn't use the term "Bishop".
It really doesn't acknowledge anyone as having the "apostle" position
From the writings dating from the first centuries of Christian Church all the chief centres of Christianity recognized and had the office of bishop, which was distinct from the local "pastors who took care of the churches.