It's baffling how many ad spaces they have in this paid for operating system. By default, there's not only this, but also "notifications" that are ads and lock

It's baffling how many ad spaces they have in this paid for operating system. By default, there's not only this, but also "notifications" that are ads and lock screen ads. I would understand it if it was free, but my employer probably paid $100 or more for it.