I would need to share the screen too between my laptop and my desktop mac, so, no. Homeoffice is a thing these days and that means, you need to connect a screen to your work computer. I would rather not have the additional USB ports on the screen (though they are nice) than not having a second input. And giving that the screen has an A13 on its own, it would have the ability for nice handling multiple inputs, e.g. PIP or nice switching of keyboard/mouse attached.

As already mentioned, people working from home would benefit from this a lot, and KVM monitors for two machines have been a thing for at least a decade (Dell, Eizo, BenQ amongst others have been offering them so there’s clearly a market). And even if it wasn’t very used, the environmental cost of just one extra monitor would be many many unused ports.

> Is this not quite niche?

Having more than one device connected to a display? I think that's rather common and I'd expect multiple inputs on a display from any price range.