I think most use graphene. Though I wouldn’t expect any magic from them either, it’s open source, which means the government doesn’t need graphene to give them a backdoor it’s already wide open.

Same for Google, it’s open source, no backdoor needed.

As far as the transition, just remember why you installed it and you won’t miss most of the pixel propriety features or that irritating warning every time you boot up.

Graphene is vanilla.