Exactly what I was thinking of when I said 'hassle.' You couldn't go to an equipment manufacturer, you'd have leaks and no brand like Rogue would accept the reputational risk, you'd literally have to break into a factory in the middle of the night - or build a whole factory just for this. The fake plates used in shoots are generic metal plates from what I've seen, I don't know if there's ever been for example cases of fake Eleiko plates and such? And as you said Hegseth would have also had to fake the lifts with the metal plates.
Russia had their intelligence agency break into a lab to switch out doping samples but even they probably wouldn't do this for Putin or Lavrov LOL.
These are the fake plates I know -
https://www.instagram.com/reel/Cyl0En6P1F1/?hl=en - Dikul's green 50kg/110lb plates. You can see a spotter easily lift one there. And there used to be video of some younger Russian guys playing with them, throwing them back and forth, but I can't find it now. If anyone has an Iron history.com account, the video was on there. They are flat old style Russian (nothing to mold in), said to be made of fabric.
Paul Anderson was said to have some wooden plates he used for stage shows. Hatfield mentioned these sometimes.
Ivanko has a show set they lend out that is aluminum. The plates are 1/4 or so of face value. Ironman Magazine used to borrow these a lot for magazine shoots. They used to take it to the Olympia also.
The other 2 common fake plates are the rounds based on the Cap Barbell iron plates. They have a plastic shine you can see sometimes on good video.
And the Iron Grip fakes. These look ok edge out, but lack the hand holds Iron Grips have in the larger sizes.