Edit: KingRaptor helped me figure out it’s a bug in steam’s wishlist. It can bundle games without telling you then shows the combined discounted price....
Also, as it was pointed out, Steam does not control pricing, that would be entirely in the hand of the publisher or developer, not to mention it is against TOS (and also illegal in some markets)
Steam wishlist is buggy and sometimes lies about discounts
Edit: KingRaptor helped me figure out it’s a bug in steam’s wishlist. It can bundle games without telling you then shows the combined discounted price....