The icons sure do start to look boring when they are all the same shape.

The iTunes icon in 10.7 kicked it off. If felt lazy and out of place, even at the time I hated it. Then other new apps followed in the same style... App Store, Books, TV, News... By 10.15 most of the life had been drained from the icons. Then in 10.16 they went fully corporate and boring, shoving them all into their little squircle jails where they've remained for 6 years and counting.

Yea, I cant count how many times I click on the wrong icon because the color is the same: Outlook, Word, Chromium, VSCodium all use the same blue for example.

This didn't happen before since we had shape and color to distinguish. So we lost one dimension...

And this is just because Apple is trying to merge iOS and MacOS at some point. I don't see any other reason.

But look at the subtle refined nuances. Sure they have no distinctive silhouette. Sure they're painfully bland. Sure none of the nuance is noticeable when viewing the icon at normal scale. But they're so refined; just look at them individually at 2000x2000 pixels! </sarcasm>