Also it appears to me that there is quite some drama between GrapheneOS and CalyxOS, and apparently the author of GrapheneOS already had some drama with their previous employer. So overall it did not help me trusting both of those projects.
With /e/OS I haven't seen such a thing, it just feels like a nice community.
Well, that is not enough to convince me. Regarding GrapheneOS, I have read extremely aggressive posts from the author against their previous company. I thought that maybe it was a toxic company, and the GrapheneOS was right (why not?).
Then I've seen exchanges between the GrapheneOS author and some Calyx people on some GitHub issue, and they were borderline insulting each other. At this point is difficult for me to believe that somehow the GrapheneOS author is always the victim. And if that's the case, then that's bad for the CalyxOS community anyway.
Maybe that's misinformation, and they all love each other. Maybe not. How could I tell? What I see is that I would not want to be part of such discussions.
With /e/OS I haven't seen such a thing, it just feels like a nice community.