Agreed. It is impossible to make an interface that works well for smaller screens with touch input, and larger screens with pointer input. You will always end up sacrificing information density and precision on the larger screen.
Even if you have a touchscreen, they should know what type of pointing device is being used to select something and the targets should adapt to that.
they did have Tablet mode, but it never went anywhere
They already defaced macOS in Tahoe. It's a bit better in Golden Gate but still a massive regression that I only foresee getting worse as every UI will have to be built with "can this be used with someone's fat finger?"