The data sources listed for UFOs are from US and Germany:

National UFO Reporting Center (NUFORC) witness reports (US, via the CC0 TidyTuesday project, 2023-06-20)

and

GEP e.V. UFO/UAP Falldaten (Germany, Zenodo 18071015, CDLA-Permissive-1.0), 1925–2025.

They are unlikely to include data from many other locations.