Security-through-obscurity (i.e. using a custom ROM on a lesser-known device) does have some upsides, since you're less likely to be compatible with off-the-shelf exploits. But this is much less true now that LLMs exist, and anyone who can afford the tokens can port any exploit to any and all vulnerable devices.

Who maintains the kernel+driver trees used by the LineageOS port you're using? And what's the modem's security like?

Are you also one of those people who think AES is backdoored because the NSA recommends it?

Since we're speculating here, I hope whatever phone you have allows you to lock the bootloader (My oneplus doesn't after installing LineageOS). And certainly NSA has no way of infiltrating AOSP or less hardened chipsets.

There has been successful honeypots like EncroChat. What's the evidence that GrapheneOS is not yet another one?

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