Victorville is a long-term plane graveyard and a lot of the planes parked off to the side are permanently decommissioned or were there long before the pandemic.
The planes without identifiable airline markings (particularly the 747s with the blue or red tails) are almost certainly permanently decommissioned. And Southwest had fleets of decommissioned older planes there at least two years ago (https://www.reddit.com/r/aviation/comments/88ie9z/twentyeight_737s_from_southwest_airlines_await/) and grounded 737 MAXes at Victorville for a year or so (https://thepointsguy.com/news/heres-where-airlines-are-storing-the-boeing-737-max/) before the pandemic.
I’m guessing most of those Delta planes on the runway are parked for the pandemic, though.
