They've gone too far on enforcing uniformity of icons and abusing liquid glass, but I disagree that arbitrary shapes were better. All the random icon shapes looked cool in isolation, but were harder to scan at a glance. The uniform squircle is a useful constraint.

I wouldn't mind if they allowed something similar to that audio hijack icon, where you require the rounded rect as the guiding frame but are allowed to have some elements protruding out of it. But completely arbitrary shapes are too jarring imo.