Not going to shill for Samsung, it has it’s problems, but to answer your question I happen to use one and I don’t have a Facebook app. I don’t remember if it was not preinstalled or if it was able to be uninstalled and I did when I got the phone, but I don’t have the app. Either way there is definitely no unremovable third-party bloat. But there is a bunch of first-party bloat though, like Samsung Cloud, Samsung Checkout, Samsung Keyboard, etc, and it can’t be completely uninstalled. I haven’t seen any apps being downloaded to my phone automatically, but I’m not logged in to a Samsung account so maybe that’s why.