Hacker News Reader

That is not true. Only Android phones from the absolutely shittiest manufacturers have malware pre-installed.

Samsung?

Yes, the shit they ship on their phone is horrible. I would never use or recommend one of their horrible phones.

Unfortunately the pre-installed cancer apps are pretty evil; the worst was the B&N Nook HD, which went online after every reboot and reinstalled any uninstalled apps.

My first step for any new Android device is to root it to kill the garbage pre-installed 'system' apps or better yet, if there is an option, install LineageOS. Newer devices are slowly making this more and more difficult with a few exceptions so I now stick to older devices.

I think you are asking about removing the apps you have authorized through facebook and not the actual facebook apps themselves?

If so it should be in settings on mobile (is on iPhone at least and it's just a webview). It takes a lot of steps, but definitely there.

iOS definitely doesn't come with Facebook pre-installed.