What stands first to me is: confusion and bad management.
It looks like there are two, or even five different worlds in this company. In one of them, the upper management lives in their world, the middle management is living in a separate world, and then the regular employees live in their world. There is very little communication between those worlds, because company is not able to change, it feels like it still thinks in old way of doing business.
First, there was a push to put people to offices, and it was decision being made without consulting the teams. Then, there was a push to experiment on AI workflows and AI code generation, without sharing any guidelines or defining ownership. After that, they just did layoffs targetting mainly engineering (it feels like half of engineering was targetted) - so people who automated some things using AI, were laid off. So people award for commitment and energy is just that, getting fired.
The thing is that AI workflows are nowhere good enough to do prod ready code at this time, the amount of technical debt is growing exponentially, and tech leadership is dormant.
There are very little possibilities to grow in this company, it was like that before, but now it's very visible. I predict that the biggest talents will just jump the ship quickly.
And there is very visible contradiction between what Brevo says is doing, and what Brevo is actually doing. For example there was also a big workshop of radical candor method, of being honest and transparent, but the upper management is keeping secrets, not communicates, doing layoffs of a surprising scale. The values of the company are artificial and not respected, it's very confusing.