Samsung's approach is rather interesting, since at 200MP with 0.8um pixels, it can definitely allow for some crisp images between the 25 to 100mm range (so 1x-4x).

Also  according to the Weibo source, they're also developing a 200MP sensor with 0.5um pixels and the same size as the Sony IMX890 for use with periscope zoom lenses with 4x lossless zoom and a 50MP half-inch sensor with 0.8um pixels for the ultrawide sensor, with 2x lossless zoom.

This shows me that the S25 Ultra will be a huge upgrade in terms of camera horsepower, especially since Samsung is taking a page out of Xiaomi in terms of designing a camera setup that behaves like a unified setup with a 12-400mm range, rather than what we have on the S23 Ultra with, 12, 24, 70 and 240mm focal lengths with nothing in-between except for crappy digital zoom.