Actually Viva Pro did most of the heavy lifting.
The full Diamant Film Restoration suite starts at a little over $20k. Dustbuster+ is the cheaper, stripped down version which can be had for just under $7k.
Ouch…pricey…Looked like Viva was more of a editor from the website. I assume there are retoration plugins within not shown that beat out anything from premier and AE which isn’t much as far as full frame scratch and dust removal. If that is the case , Adobe has some catching up to do as you examples looked clean and fantastic!