Are the FAANG type companies already so big and large that they don’t worry much about competition? They all dominate a certain vertical and just need to blow w

Are the FAANG type companies already so big and large that they don’t worry much about competition? They all dominate a certain vertical and just need to blow wind in a direction and they could dominate another market. How competitive do these companies even need to be anymore, rather than just sit like a bloated whale and keep the system running along without much change.