I'm not a fan of all the blank space in their design language, it doesn't look bad or anything but I don't have a touch screen and having to move the mouse around so much for long periods of time physically hurts, especially on laptops.
I wish it was more… desktop friendly… If they took more advantage of the dynamic layout capabilities of GTK4 to have a better desktop layout based on their already existing design language while still having this mobile esk layout for other devices, we'd be golden.
If they don't want to do that, they should at least increase the default mouse speed so it feels better out of the box.