How was the church governed: bishops, presbyters, deacons?

Polycarp of Smyrna c. 69–c. 155 ADLetter to the Philippians 5.3

... being subject to the presbyters and deacons as to God and Christ.

Polycarp, himself a bishop, names no bishop at Philippi, only presbyters and deacons.

Shepherd of Hermas fl. c. 140 ADShepherd of Hermas Vision 2.4.3

You will write two little books and send one to Clement and one to Grapte. Clement will send his to the cities abroad, for that has been entrusted to him; Grapte will instruct the widows and orphans. And you shall read yours to this city, with the presbyters who preside over the church.

At Rome the church is led by the plural presbyters who preside over it; no single bishop of the city appears in the Vision. In Vision 3.9.7 the same leaders are addressed as those who lead the church and love the first seats (τοῖς προηγουμένοις τῆς ἐκκλησίας καὶ τοῖς πρωτοκαθεδρίταις). The library's Hermas is the Greek text.

Belgic Confession (Reformed)Belgic Confession Article 31

As for the ministers of the Word, they all have the same power and authority, no matter where they may be

The Reformed read the New Testament as having one order of presbyter-bishops.

Church of EnglandBook of Common Prayer, Preface to the Ordinal Preface

It is evident unto all men diligently reading holy Scripture and ancient Authors, that from the Apostles' time there have been these Orders of Ministers in Christ's Church; Bishops, Priests, and Deacons.

The Anglican Ordinal claims the three orders from the apostles' time.

Second London Baptist ConfessionSecond London Baptist Confession 26.7

To each of these churches thus gathered, according to his mind declared in his word, he hath given all that power and authority, which is in any way needful for their carrying on that order in worship and discipline

Baptists and Congregationalists give each congregation full authority.