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The united dutchies wrote:

As a Biblical Orthodox Christian, which is almost the exact same as the Catholic Church, except we regect the post vatican 2 catholic stuff, because the document formed at the council of trent said that if someone tried to change the tridentine rite, they would loose there apostolic authority.
I loved the paper buddy
God bless you

If you're referring to Quo Primum, that wasn't a conciliar document. That was a Papal bull written in 1570, which is a couple years after the council closed, that promulgated the Tridentine Missal for almost all of the west. Quo Primum isn't binding on anyone today since it was a disciplinary document that was essentially replaced in 1969 by Missale Romanum.

Pope St Paul VI had the authority to allow the changes in the Roman Rite because no Pope can force future Popes to specific prudential judgements like this. Quo Primum also never says that someone loses their Apostolic authority for altering the missal. Instead, it wrote how nobody had the right to deviate from the missal as promulgated by the Supreme Pontiff, and in the list of those who are bound to this decision, it notably leaves out Popes. Also, if what you said was true, then Pope St Pius V excommunicated himself for altering the calender a couple years later. Along with multiple other Popes including Pius XII.

Worth mentioning, the same language of authority and promulgation is used in Quod a nobis, which served the same function with the Roman Breviary. And that didn't stop Pope St Pius X from completely abrogating that same breviary in Divino afflatu.