Hello, i'm using GrapheneOS for over a year now without any problems. I would considered myself as targeted, because i'm opposition in my country and we're pretty harsh treated here.
Now to my problem(?). Today i was scrolling through the permission manager in my main profile and under system apps i found something called 'lmsService' which i would consider very suspicious with it's permissions, it had pretty much everything enabled. I will attach pictures of what i mean. I don't have sandboxed play services installed on my main profile and have only FOSS-apps installed, so no whatsapp, etc. Is this something to worry about? Can i just revoke any permission without breaking my phone?
I hope it works: https://imgur.com/a/6Gn81VV