GrapheneOS only points out (very bluntly tbf) the fact that /e/os and other "privacy" focused os don't keep up with critical security patches and actually makes users less private and secure due to this. I think saying that GrapheneOS belittled /e/os is a little much considering the amount of missinformation/attacks that people from /e/os and Murena have been doing accross social media. I mean you see it here calling "hardened security approach" is for pedos/criminals very extreme language which does genuine harm to projects like GrapheneOS. Their Unified Attestation project is just a way for them (/e/os, murena etc) to control which apps can run on which device when GrapheneOS supports hardware attestation which would allow (afaik) apps to verify on the hardware level to ensure the security of apps. Read this thread on their mastodon, they routinely have to defend themselves on social media from a mountain of misinformation and disinformation you should read some of the other posts on their mastodon.