Everything #OpenStreetMap related is welcome: software releases, showing of your work, questions about how to tag something, as long as it has to do with OpenStreetMap or OpenStreetMap-related software.
OpenStreetMap is a map of the world, created by people like you and free to use under an open license.
Join OpenStreetMap and start mapping: https://www.openstreetmap.org.
There are many communication channels about OSM, many organized around a certain country or region. Discover them on https://openstreetmap.community
https://mapcomplete.org is an easy-to-use website to view, edit and add points (such as shops, restaurants and others)
https://learnosm.org/en/ has a lot of information for beginners too.
Well, that probably depends greatly on the device you are using. There's dozens of Android smartphones out there.
With this said, OsmAnd updated their rendering engine last year to use OpenGL, so the way each phone and OS handles OpenGL will have a great impact too. Of course considering that you have your Android OsmAnd configured to use the Version 2 rendering engine (which uses OpenGL), and not Version 1.
