You need to take their verbal advice to heart with all of your jobs as you are breaking the number one rule of playing the game and that is to make sure your manager looks good. Anything you are saying to leadership your manager should already know and have prepared for. What they are really saying is that what you are saying may be true, but nobody was prepared for what you have said and now others also look bad for not being prepared.

The micromanagement is unacceptable and not welcome in any healthy workplace environment. It only breeds toxic environments as the whole foundation which is trust is constantly broken due to the micromanagement.

If you did not trust the person why did you hire them or continue to keep them onboarded.

So while the verbal be mindful of how and where I speak is something you need to remember at all times while at the workplace or while working or coordinating with anyone at work as your words can and will be held against you no matter how accurate they are. It is how your words come across to those above you, and those egos can cause problems for you. In an exceptionally wonderful workplace you could cut the filter off and being amazingly productive by just saying how it is, but those types of workplaces are so rare that many people don't talk about them publicly so it doesn't get ruined.

From someone that has been on both sides and fired micromanagers with a passion because they infect my talent pool and prevent them from making big money. My biggest and hopefully best suggestion for you is to move to a different team or org before the micromanagement starts to weight down on you.

This is not something you can fix, and can only be fixed by them being terminated or reeled in by somebody higher up the food chain to put a stop to it. The private this and that is a cover tactic I used to see all of it happening where I worked and used it to build cases against really bad managers that thought they were covering their tracks. Saying one thing in public then being unacceptably unprofessional in the DMs and private channels. These types of management cause companies real money with the talent they push out the door and it makes it very hard to get great people. Though, it is always best for those great people to just move teams or orgs and leave them with the no or little talent. They cannot survive if there is nobody there to do the work in a timely manner at high quality. So the problem fixes itself one way or another due to all the good talent going to other managers or leaving the company and the manager getting clipped because they are not able to meet leadership expectations.

A captain cannot keep a massive ship moving all by themselves, it requires an excellent crew and for everyone to pull their weight. Once a captain forgets this and looses the crew they go down with the ship.