Had been on Calyx for a while, must say /e/ was definitely a better experience, haven’t tried anything else besides that
I think /e/ is forked from either Graphene or Lineage (not sure which one) but comes with a full FOSS suite of replacement apps that integrate with the Murena online services (can also use a regular Nextcloud instance)
It’a neat and tightly integrated out-of-the-box, worked really well on the 3a, but most apps sorta fell behind in terms of features in the long run compared to traditional FOSS apps, might also be due to lack of updates since the device is considered EOL
I’m looking into getting a Fairphone with iodéOS next, since my 3a doesn’t recieve updates anymore and the phone’s been agonizing from all the traveling haha