I don't like installing apps on my phone and having them do whatever in the background. I don't want notifications. I don't want to give an app any kind of acce

I don't like installing apps on my phone and having them do whatever in the background. I don't want notifications. I don't want to give an app any kind of access to my phone, period. I don't want more ads in different places. I don't want a different interface than what I'm already used to.