What would you do if your head of company keeps changing, people keep leaving because they are not heard, you just transited into a new role

Adapt to the new head of company, learn how things can change and grow from it. Transition is hard but also exciting and fun. Depends all on perspectives.

Do your job

If faced with frequent leadership changes and discontent among colleagues, I'd focus on adapting to my new role, fostering open communication, and seeking stability within my control.

Good what. Mean you can ask for pay raise.