veloscipula Is battery life better? I know Google does a lot of battery optimization so this is important to me.
Google destroys the battery life, GrapheneOS makes it WAY better.
Is battery share available? One feature I really enjoy is that I can turn my pixel into a wireless charger for other phones. Is this option available in graphene?
How far does customization go? I love the pixel giving me the option to choose themes (change app color, menu buttons and windows to a scheme). Right now mine is green and I really like the look of it. Can I do this in graphene?
I think its the same, but I consider that kind of thing to be superfluous and irrelevant so can't confirm.
Can I customize the keyboard to be as good as Google's?
You can install different keyboards as needed, including gooble's.
Is the volume slider as useful and niche?
It is identical.
Can I make graphene OS smoother and more aesthetic?
Huh? Its smooth.
I prefer aesthetics and would like to know what I sacrifice and gain by switching.
Is the 90hz refresh rate still available and adaptive?
Is the camera (video hdr) just as good when I reinstall Google camera?
Is 10 bit hdr still available and supported within apps like Snapchat and TikTok that the pixel gained support for?
Yes, yes, yes, and please don't use tiktok since its definitely nothing but PRC spyware.
Does wifi calling, dual sim and esim all work? This is crucial for me.
Yes, however setting up esim requires proprietary software.
Are there any features, optimizations, etc. that I should know when switching to graphene OS?
Maybe or maybe not. Depends on your needs. If you have a more specific question, ask it.
Can I switch back if I don't like it?
Does this void warranty?
It voids the software warranty if you screw it up, but the hardware warranty remains intact.