I was trying to get more CC-BY photos for wikimedia commons, but hit a snag here (https://www.inaturalist.org/observations/58437569). If not, i can add this as a feature request
i don’t see anything in the Android app to change either observation licensing or media licensing. it can be changed via the website though, and based on comments in the observation noted above, it seems like it was accomplished via web in this particular case.
since the functionality to change licensing exists in the web, my opinion is that it does not necessarily need to exist in the app. however, i think it would be useful to display license in the app.