Double tap or long tap in Safari does not trigger proper JS events in Safari on iOS 13, making a lot of websites unusable.
Long tap in iOS Safari does not send any event to Leaflet library and is handled by iOS itself.
Double click emits following events: mouseover, mousemove, mousedown, mouseup, click, which results in songle click event.
More in this thread https://github.com/Leaflet/Leaflet/issues/6817