For those unfamiliar, GrapheneOS is a privacy and security enhanced custom ROM endorsed by Snowden. Despite these big names, plenty of people give it backlash
Even @TheAnonymouseJoker@lemmy.ml gives it backlash despite being a moderator of Lemmy's biggest privacy community. A quote here: "grapheneOS trolls are downvoting every single post and comment of mine, and committing vote manipulation on Lemmy. They are using 5-6 accounts." That was in response to downvotes on a comment posted in the c/WorldNews community, which is entirely unrelated to technology.
One of the reasons is that GrapheneOS can only be installed on Google Pixels due to security compatibility, which makes complete sense considering Android should be most compatible with Google's own devices. GrapheneOS even lists the exact reasons they chose Pixels, and encourage people to step up and manufacture a different supported device.
One year ago, Louis Rossmann posted this video outlining his reasons for deleting GrapheneOS. Mainly, he had multiple bad experiences with Daniel Micay (the founder and main developer of GrapheneOS) which put his distrust in the GrapheneOS project. Since then, he has stepped down and will no longer be actively contributing to the project.
So, I am here to learn why exactly people still do not like GrapheneOS.
Point still stands. postmarketOS isn't hardenned. Default desktop linux isn't hardened. Malware could easily infect your device and exfiltrate data, escalate privileges, modify the kernel, etc. Each of the things I have mentioned (hardened_malloc, immutable OS, hardened kernel, hardened firewall, removal of identifiers, full disk encryption, locking of root login [not the same as invoking root], MAC hardening through SELinux or/and AppArmor, service minimization for reduced attack surface, package manager hardening, secure boot, sandboxing of applications, etc) should be implemented for both Desktop or Mobile Linux to have "good" security. Security is preventative. All of these things come together to create a system better equipped to protect against know and unknown threats, which especially true for mobile devices which are near-costantly in unknown environments. A vulnerable device is weak link in the chain of your security, which can be used to compromise your privacy. You may never be attacked or have your device exploited, but that doesn't make it secure as a result.
I would love to see an actually secure mobile device that is rid of Google's stench. Problem is postmarketOS isn't secure, its just default linux on a phone. If it saw largescale adoption (which we all would like a good alternative to do) it would be easily exploited.
It says postmarketOS is based based on alpine Linux, which according to Whonix doesn't meet their threat model and it's odd to claim "Alpine Linux was designed with security in mind" when Alpine's package doesn't pass The Update Framework model. A vulnerable package manager can be used to compromise a system, read more package management on TUF's website.