May I just offer a very short answer. Based only on what I consider bad advice for this phone to fully update before /e/OS automated instsall. I think there is a chance that you were / are in this situation. Fairphone 5 – Installing latest eOS 3.0.4 official build: bootloader locking fails with "corrupt" error - #4 by aibd
Edit working though easy_to_answer. No eosinstaller would not have installed community. Change of Android version is bsically OK with this install method.