This will ultimately lead to world peace as every army is in meetings all day.

It’s retroactive and it’s not based on sales, it’s based on installs. So for example, I purchase a game on steam and I own a PC, a steam deck, and I have a kid with a PC. That’s 3x the fees for one sale even though I can only play it on one device at a time. Maybe I get bored of the game and uninstall it. A year later I want to play it again, there’s a new fee for the same sale and PC that unity gets.