Those changes are already in the latest macOS. So feel free to share your opinion on what we’ve already been using instead of speculating.

I'm still on Sequoia for this reason. I want a UI optimized for displaying text content and mouse and keyboard control. Mostly keyboard. I definitely don't want the larger border radius on the windows that would seem to be designed for touch.

Isn't that his point though ? Their plan seems to half-ass touch support (i.e. the menu bar, minimize/close buttons, etc. all stay in their current size), so it seems like a waste of hardware to include a touch screen just for very little functionality. If instead they make the UI friendly to fat fingers, they'd very much affect the mouse/trackpad experience.