How patristic and traditional is the Orthodox theology of divorce and remarriage? And is their theology good interpretation of the Gospels?

Sources:
Ephesians 5 (Husbands love your wives): https://bible.usccb.org/bible/ephesia...

Catechism of the Catholic Church (The Marriage Bond): http://www.scborromeo.org/ccc/p2s2c3a...

Remaining in the truth of Christ by Robert Dodaro (The vast majority of my references for this video are from this work): https://www.amazon.com/RemainingTrut...
Pages referenced: 120, 121122, 123124, 84, 82, 85, 129130, 84, 88, 82, 91, 102, 18, 110114, and 139140

Matthew 19:9 (Greek): https://biblehub.com/text/matthew/19...

Matthew 19:9 (English Orthodox): https://www.oca.org/readings/daily/20...

Matthew 19:9 (English Catholic): https://bible.usccb.org/bible/matthew/19

Mark 10:9 (What God has joined together): https://bible.usccb.org/bible/mark/10

Gregory of Nazianzus Epistle CXLIV (On divorce): https://www.newadvent.org/fathers/310...

International Theological Commission Communion And Stewardship: Human Persons Created In The Image Of God: https://www.vatican.va/roman_curia/co...

The Paradise of Patriarchy: Ambrosiaster on Woman as (Not) God's Image (Page 449): https://www.academia.edu/3476251/The_...

Vatican I chapter 2 (Church fathers as infallible when held in common): https://www.papalencyclicals.net/coun...

Council of Florence 1439 (Perpetual bond): https://web.archive.org/web/200011182...

John 6 (Lord to whom shall we go?): https://bible.usccb.org/bible/john/6