I've slowly been moving more and more stuff off of Google, but the last few things are ones I've had for years. Gmail and Google Fi.

Google would never in its wildest dreams kill Gmail, but sometimes I do worry about Google Fi. I know others have mentioned not having great experiences, but I've used it since shortly after it was announced with practically 0 issues. Luckily I've never actually had to contact support for anything though so that probably contributes (I hear its pretty terrible). I'd hope its something that will last the long haul.