They all have iPhones and Google Android. Since all my calls and text messages are monitored on their phones, am I causing any additional harm to myself by using Google Messages on GrapheneOS? That way I could at least use RCS messaging.
IMHO it’s not just about the messages but whatever else the app might have access to just by being installed on your phone.
https://f-droid.org/packages/net.typeblog.shelter/
And with GOS, don’t hesitate to explore settings for each apps, even in the work profile
Good luck to you, and have fun