It is like that. Leaving for what? Most places are similar. Same shit different people. Some times you get lucky, and you get some time where things are working for you - but teams never remain, good people move on or up.
Leaving is not always the answer, keeping your head low and surviving is modus operandi for a lot of people.
In my experience a team breaking up or role model leaving is a good moment to do a temperature check and decide whether it’s worth staying.
Perhaps I’ve been lucky though. I’ve worked at places with potential to move internally which has kept things fresh and allowed me to grow expertise on the same larger team without losing tribal product knowledge altogether.
I’ve only switched companies once and it had more to do with curiosity than bad management.
Leaving is not always the answer, keeping your head low and surviving is modus operandi for a lot of people.