When I first tried OsmAnd a few years ago it was overwhelming, there is so much to customize.
I tried it again recently and it really impresses me.
My OsmAnd ski profile shows me slope for avalanche risk and 3D relief so I don’t need Fatmap, plus OsmAnd let’s you download 7days of weather.
OsmAnd doing routing on hiking trails replaces my need for Gaia.
Really impressive work by the OsmAnd team.
The UI is rather old fashioned and complicated and scales badly, scaring people away before they start.