When bing goes down so does duckduckgo but somehow your apples to oranges argument is somehow comparative to you.
They share hosting servers, that doesn’t make them the same service. When the power goes out do you think you and your neighbors live in the same house?
Just keep sucking down the hype. They don’t share the same hosting for the frontend but they both use the same backend. The backend is of course owned by microsoft. duckduckgo uses bings backend and somehow you have convinced yourself beyond all evidence to the contray that it isn’t bing with a different wrapper.
When you can’t pay Stardew Valley (because Steam is down) you also can’t play Eldenring. They must use the same backend and Eldenring is just Stardew Valley by another name.
You’re going to need a better source than “they go down at the same time”.