The fog of war over all that happened with my change of team is starting to dissipate.
3 people were involved and there were 4 different versions of the whole situtations, but from what I've been able to collect it looks like the company is expanding and one of the mail KPI for the current team leaders is how good they are at creating a NEW generation of team leaders, to take care of the new entries.
My previous team leader told me about all these new growth perspectives and the junior entries I could manage, knowing very well of the desire I have previously expressed of being a senior dev with my small group of juniors to teach.

I declined the offer, stating that this whole year has been exhausting. Every single time I've tried anything (using modules for new components on our old web client, tsdoc to document our types, suggesting technologies like ANYTHING BUT ANGULAR AND MONGO, telling how removing down migrations was a retarded move) my suggestions were either shrugged off or flat out refused. Let alone how every time I was proven right, except for angular but give it time and that will bite their tail as well.
Don't get me wrong: they are well withing their right when they take all those decisions, and more. But I DO NOT PLAN on selling a plethora of bad decisions to a new stack of devs as if they were the gold standard.
"I understand your reasons; you, as a company, need a well coordinated team all running towards a goal; loose cannons are harmful.
But now I need you to understand me: I do not agree with your technical direction. I never lied before and I will not start now. Promotions don't matter nearly as much as my integrity, and integrity in my world means speaking up about problems. Your position is perfectly valid, but mine is as well and they can't be reconciled. If I were you I'd make myself a favor and make sure IHateForALiving doesn't become a team leader; given your direction, I'm not the man you want right now".

As mentioned, one of the KPI for team leaders is how succesfull they are in finding new team leaders, and trying to turn me into one didn't end well; I love sharing knowledge, but being honest to myself is far more important to me. So this meant my previous team leader failed in a very big task, and thus was demoted? At the same time, I've been there for 2 years now so they're not really eager to replace me, but I'm under strict examination too as of now.

+++ THEY ARE WRITING TYPE DEFINITIONS +++

THEY ARE UNDOGGING THEMSELVES. THIS IS NOT A DRILL: THEY ARE LEARNING SOME GOOD FUCKING PRACTICES