Couple you please check the tagging for the ways leading to the bandstand/estrāde. Informal paths are path in unplanned locations that have formed by people walking through location they are not expected to walk (like the correct ones in courtyards here where people walk along grass as shortcuts when there are roads and footways nearby). This never applies to built or expected paths or locations where there isn't infrastructure, like forests. If there are unpaved paths here, they would just be highway=path. If these are paved or somehow built, then they would be highway=footway. You also drew an area here https://www.openstreetmap.org/way/1452565074, so whatever the path is, it has to be a asphalted footway then too.