Apple has used this kind of blurry resizing animation in the past. For example, circa macOS 10.14 Mojave resizing windows in Split View would have the same effect: https://youtu.be/KDDMUxBtnkI

current view transition stack on ios was built for static transition between two well know layouts, like portrait to landscape rotation change. i would like live reflow too but i suspect 99% of existing apps aren’t ready to reflow at 120hz when they’ve been written around tween(start layout, end layout) style for decades