I fail to see your point? Right now a dev can sell their game as digital-only, forego a bunch of distribution costs and other costs associated with a physical release, and prevent lost game sales from resales. If this was to actually happen, they could no longer prevent those lost sales.
As a gamer, there’s no longer any reason to “pay” for games. You can just borrow them. Buy them used, and turn around and sell them when you’re done.
file.pizza if this is a one off or rare occurrence. If you’re doing this regularly, there are better options, provided the person at the “source” computer is competent. A significant question is whether or not these computers are on the same network. I would recommend running a HTTP server if you don’t care about privacy, HTTPS if you do. There’s no need to buy an SSL certificate, self-signed is more than adequate for this purpose.
It’s more complicated to set up, but the advantage is that when you’re done you can send the receiving party a link they can open in any web browser, no hassle.