I don’t mean to sound callous but if some relatively minor RCS issues, and there’s really no way they could be classified as major, stopped your friend from doing what he set out to do then he wasn’t all that invested in the idea.

I’m not saying there’s no problems with GrapheneOS or any other product helping consumers to change their habits but if you really care about issues like corporate overreach then a little inconvenience isn’t a deal breaker. In fact, it’s to be expected when switching away from mega corporations. They invest tons of money to make their user experience decent so that they can profit off of your data. If you want to get away from that you have to accept the fact that you’re moving away from a product supported by thousands of engineers with billions of dollars to spend towards a product developed by tens of engineers or less with very limited funding. Those developers do a damn good job IMO but a dip in ease-of-use has to be expected.

At the end of the day we all have to decide if we’re going to prioritize convenience or mindfulness. It sounds like your friend made his choice, and there’s nothing inherently wrong with the choice he made, I just think it’s important to put it in the proper perspective.