I wrote up a whole thing on Discord but can't find it now, but the gist of it is that at the moment I'm not particularly worried about my phone being compromised via exploits and my safety isn't immediately at risk. My big motivator at the moment is trying to give Google duller claws to sink into me, and Lineage is fine for that at the moment.

Graphene due to its nature sacrifices a lot of quality of life features in the name of security. I found that a few apps would simply segfault on open, even with the security options disabled for the app. Multitasking was essentially non-existent, swiping between two apps trying to reference then type something? Good luck, both apps will do a complete reload on every swipe. Small things like that. Graphene is definitely a viable option if or when shit absolutely hits the fan and I am concerned about safety and exploits, but for now I'm much more happy on Lineage.