This is going to extend past phones too. You need to assume that if you input any information into a closed source system, it is going to be collected and exploited. Everyone needs to be interfacing with open source software whenever possible, especially operating systems.

Everyone reading this needs to start learning how to use Linux TODAY. The way things are going, you are either going to need to ideologically conform or you will be disappeared like dissenters in China. That is, unless you take steps to protect yourself.

The left part of this image was always a gift, and you were naive to think a corporation like apple ever protected your privacy. That said, I don't blame anyone who is just now becoming aware of this, and if privacy is actually something you value it's not too late. There's a lot of degoogled android roms and that's the best bet today in terms of privacy without sacrificing utility. I recommend GrapheneOS, but if you're apt to set it up you can do your research and find the other roms. If you're lazy or a noob you can follow the Freedom Phone which looks to have potential but it's yet to be seen if that will be an open source platform. If it isn't, avoid it. You really can't afford to be lazy or ignorant about your privacy today, so I recommend you start to follow these topics and learn what it takes to actually secure your privacy.