GrapheneOS vs LineageOS vs iodéOS

I've run both Graphene and Lineage. I will be sticking with Graphene. Lineage isn't really drastically different than any other android experience in my opinion. Graphene is another animal. It includes privacy and security features that just aren't available elsewhere. It even offers a degree of protection when using Google apps, using a sort of neutered version of Google Play that has its spying features limited to the bare necessity to do its job.

I'm not even scratching the surface, and if there's a downside it's that it will take a little reading to understand all your new options. I've been running it for six months or so and I'm totally sold. Once you're used to it, it'll feel like how android should work.