>That looks like someone made a list of mostly features specific to GrapheneOS so they could make a chart where all of the other alternatives (including stock Android) are full of red boxes.

No one else even bothered to make a list.

>Several of those are the opposite of security features, like SafetyNet support, which might be a convenience in some cases but it mostly makes it so you can't upgrade certain parts of the system to newer versions even when the old versions have security vulnerabilities.

Citation needed