One interesting thing about the Beluga: the pilots very often fail to land them and have to do multiple attempts! The Beluga landing is kind of loud, but it's nothing compared to the sound of the engines when they pull up after a failed attempt
They're likely just doing a fly by for a visual inspection of the runway since it's not a major public airport with full time air traffic control.
Most people are smart enough not to park something in the middle of a runway but might not have an intuitive grasp of how large a wingspan these things have.
https://pimaair.org/plan-your-visit/available-tours/
(They stopped at the onset of the pandemic and AFAIK never resumed.)
The museum is still well worth visiting, and driving around you can see some of the planes parked in the Boneyard. Davis-Monthan also puts on a pretty good airshow every couple years.
From what I can tell, the pandemic gave many government functions and bureaus carte-blanche to stop working while collecting the same paychecks.
Have seen Belugas flying and on the ground at Toulouse.
I recommend going to the Davis-Monthan Air Force Boneyard in Tucson, AZ [3] and the nearby Pima Air & Space Museum [4] to see all the other big baddies.
[1] https://en.wikipedia.org/wiki/Airbus_Beluga
[2] https://en.wikipedia.org/wiki/Boeing_Dreamlifter
[3] https://www.airplaneboneyards.com/davis-monthan-afb-amarg-ai...
[4] https://en.wikipedia.org/wiki/Pima_Air_%26_Space_Museum