- Edited
German Pentester and Security Reasercher Kuketz started a series of articles early this year, with the goal to compare the major custom ROMS
GrapheneOS was the last to be reviewd and the article is finally here.
You can find it here GrapheneOS: The Gold Standard of Android ROMs
You probably have to translate the website somehow as it is written in german.
But here is the summary at least
GrapheneOS sets standards in terms of security and data protection that are unmatched by any other Android system. Nevertheless, the system is not designed exclusively for security and data protection freaks. It offers an alternative for anyone who wants to have more control over their data and free themselves from dependence on Google. If some apps are still dependent on Google Play services, they can simply be installed together with the Sandboxed Play Services in the work profile. This may not be the optimal solution, but it is a significant difference to conventional Android systems where users are constantly monitored.
There is no doubt that GrapheneOS is currently the most secure and privacy-friendly custom ROM or Android system. The icing on the cake would be if the obligation to use a Google device was lifted and GrapheneOS stuck to its plans to launch its own devices on the market. This is actually the only point where I would have something to criticize - complaining at a high level.