Namida does not support .ogg files even though they sound basically indifferent to flac but much better than mp3 or m4a.
This is why I'd really love if you could add support for such files.

Picture of error description when trying to play .ogg files

The windows media player for example has .ogg support and i think libogg might be a solution but don't quote me on that.
Note: I am using the beta build of the app.