Not so much as hire-to-fire from my limited experience. When they hire you, they want you to succeed. However, the pressure to deliver is there and it is real,

Not so much as hire-to-fire from my limited experience. When they hire you, they want you to succeed. However, the pressure to deliver is there and it is real, good is many ways. And firing typically is totally unrelated to hiring. Firing decisions are for typical bottom X%, or product not doing good and actions need to be taken. It is easy to say that leaders do it to save their ass, but there is more to it and almost in every organization.