[calmingsolitude]

Basically all of Graphene's RCS issues have been fixed[0]. Additionally, your stance seems somewhat unusual - GrapheneOS isn't only meant to be used by people that have "something to hide". As for explaining it to border guard - it's just Android - if you're unlocking your phone for them anyway, they definitely shouldn't care about what flavor of Android you're running, whether it's LineageOS, ColorOS, GrapheneOS, etc.

Of course, there might be more nuance to your situation than I am privy to, but almost everyone travels, and I'd heavily hope that being stopped at the border isn't the reason keeping them away from Graphene.

[0] stickied comment on https://www.reddit.com/r/GrapheneOS/comments/1pceh1t/am_i_th...

[grapheneos]

GrapheneOS is one of the most widely used alternatives to Google Mobile Services Android along with LineageOS. It already has nearly as many users as the official LineageOS releases do and will have more soon. It's not a niche OS only used by people targeted by governments as is often claimed and it's also not at all only for technical people. It's more aimed at people who aren't technical power users than those who are.

[vablings]

There is little difference these days between the government spying on you and your own device spying on you. The difference is one only cares if you do something wrong, the other one will steal pilfer and sell your data despite already purchasing a product.