Valve says that from early 2027, Steam's Discounts & Events area will move away from manually scheduled placements towards something more dynamic and personalised, with each player seeing a different set of discounted games. Unlike the dynamic and elastic pricing currently being tested by Xbox and PlayStation stores respectively, Valve's approach isn't about changing prices. It's more about which games get shown to you.
So basically, the prices are the same for everyone, but which sales are displayed on the homepage will differ from person to person?
That's pretty normal, and I would have thought that they were doing that already. That's useful personalization and it's fairer to developers who might not have been selected in the curated lists.
Meanwhile I didn't know Xbox and PlayStation were doing that. I wasn't buying anything from them, but now I know to look for shenanigans too.