Fairphones have atrocious updates, privacy and security. They lag many months and even years behind on providing crucial standard privacy and security patches. They've failed to respond to the discovery of severe security issues including multiple of their devices using publicly available private keys for signing.
Fairphone lags months behind on providing Android Security Bulletin patches which are themselves delayed by months compared to when OEMs are first provided and allowed to ship the patches. They lag a year or more behind on major OS updates and count this as additional support time compared to other OEMs. For example, a final major OS update being delayed for 3 years is marketed as providing 3 more years of support compared to shipping it on time.
Fairphone 5 and earlier have an end-of-life kernel branch and the same fate awaits the Fairphone 6. Pixels move to newer kernel branches and are currently moving to 6.12 and then on to 6.18. Other OEMs are also beginning to use newer kernels and move to new branches. Linux LTS branches are only going to have 2 years of support going forward.
Fairphones are designed and assembled by an ODM. Fairphone has very limited involvement in engineering the devices. The working conditions and supply chain are also largely up to T2Mobile rather than Fairphone. Whether either of those are better than Pixels or especially iPhones should be demonstrated with evidence. There's extremely little information available on the working conditions, pay and other aspects of the assembly and supply chain for Fairphones.
Fairphone replaced their own open source OS without Google Mobile Services with /e/ as part of a close partnership with Murena. /e/ and Murena have repeatedly claimed highly private and secure devices mainly benefit criminals and pedophiles along with peddling other authoritarian talking points. They've falsely claimed GrapheneOS devices are mainly used by criminals and aren't useful to regular people.
https://www.clubic.com/actualite-604786-murena-e-os-intervie...
https://nitter.net/GrapheneOS/status/2040887784253141142
Despite the marketing, /e/ has very poor privacy and security. /e/ has their own invasive services with tracking, gives highly privileged access to default enabled Google services and doesn't keep up with basic updates. It greatly rolls back privacy and security compared to the Android Open Source Project.
https://codeberg.org/divested-mobile/divestos-website/raw/co...
https://eylenburg.github.io/android_comparison.htm
https://discuss.grapheneos.org/d/24134-devices-lacking-stand...