controlsys's journey

I recently resigned from my apprenticeship role in industrial automation software at a large multinational company in Germany after experiencing a toxic work environment, particularly due to my manager's inappropriate behavior. I had reported this to HR, but the situation only worsened, and I felt increasingly isolated, especially when sent on business trips alone, contrary to my contract that required a tutor to accompany me. After I decided to look for new opportunities, I was informed by HR that my manager would be fired, but nothing was mentioned about my situation. Shortly after, I submitted my resignation. This led to a flurry of communication from my department head, HR, and colleagues, all urging me to reconsider and offering a counteroffer, emphasizing my importance to the team and the critical nature of my projects. Despite the tempting offer, I am concerned about the company's financial instability, as around 15 people from my department have left recently without receiving counteroffers. The new company I am considering is offering a 40% salary increase, which makes me question my worth at my current job. While the prospect of my manager being replaced by someone I get along with is appealing, I can't shake the feeling that the company's desperation to keep me might indicate deeper issues. I want to leave on good terms and keep the door open for future opportunities, but I'm torn about whether to hear out the counteroffer or move on to a more stable position. Any advice on how to navigate this situation would be greatly appreciated.