OrganicMaps does seem to have a more intuitive interface, or maybe I should say used to have. OsmAnd recently updated their interface and things flow & feel better now. I used to install OrganicMaps on our kids' kid-safe GrapheneOS phones because it was more intuitive and they struggled with OsmAnd, but not any more. I haven't compared them both side by side in a couple of years This is probably because OsmAnd works great so there's not much of a need to look into an alternative like OrganicMaps that isn't 100% open source.