… and hopelessly outdated.
Be aware, however, that while /e/OS still build their Android 11 (R) for the Fairphone 2, they are about to end this and are not including security updates anymore anyway since the final Android 11 round of security updates back in February.
You are trying to ride a dead horse here.
The only halfway viable way forward with a Fairphone 2 I’ve seen so far is here.