I'm not sure if this fits anywhere on the forum but I thought you might want to know my thoughts or someone finding this via a search engine might be helped deciding to use Graphene OS.
So far spite the problems I have with the phone my Pixel works better than it did with stock Android. Calls are more clear even when the phone is apparently infected with malware. The battery tends to last a lot longer and I attribute that to the absence of things I dont need, like Android auto and the other Google apps I rarely use. I noticed theres half the apps than Android had, which is great. When I dont use my phone much, the battery lasts a long time. One time the battery estimate said 7 days one time which shocked me because smart phones dont usually have that much.
I dont use stuff from the play store and I havnt missed it much because even when using android I rarely used it. I like the foss apps more now that I know its an option. When something asks me to sign up for a subscription I usually delete the app upon seeing the dialogue box.