As suspected by me and others:
The might not have been drones: https://dronexl.co/2025/10/04/denmark-quietly-debunks-drone-sightings/?fsp_sid=20511
Danish authorities have quietly confirmed that several high-profile “drone” sightings that triggered a massive international response last month were actually conventional aircraft—but they’re refusing to share these findings publicly, according to DR.dk, Denmark’s national broadcaster.