Iirc E/OS is based on Lineage, but takes a horrifying long time to patch in security updates on top of Lineage's already somewhat laggy patches. If you choose to use it make sure you're aware of that going in.
Also, like IIGxC said it's a android. Maybe slightly more private that most stock versions on most phones. But that's like saying [insert Linux distro] is better than Linux.
Not even any checks on their power anymore, just agency thinks you're bad so pay up. I'm all for getting some better regulation on big tech, but I have a gut feeling all this'll be is the equivalent of persecutors sending in a stream of fees unchecked while nothing changes for the everyday person.