Sick. DM if you want help loading GrapheneOS but if you've fucked with Android ROMs before I'm sure you won't need to 👌
Discussion
GrapheneOS loaded (it was super easy)
but what do I do now?
Depends. You def wanna get an F-Droid client. I recommend Neo Store (you can find it on GitHub) it's wayyyy better than the official F-Droid app.
Once you have it go into settings > repositories and activate the ones you like. I definitely recommend IzzyOnDroid it's way better than the official F-Droid repo.
The rest comes down to if you want a de-googled phone or not. Remember if you do install Google Play Services it's all sandboxed on GrapheneOS.
You can also install them in a second user which is totally walled off from the main one.