> On a platform level, we believe GTK should stop forcing a single stylesheet on all apps by default. Instead of apps having to opt out of this by hardcoding a stylesheet, they should use the platform stylesheet unless they opt in to something else.

This is what I take issue with as a user. A major reason why I prefer GTK is exactly because I can get a homogenous look without having to tweak every single app individually. There are definitely issues with the way this is handled (and I'm TBH still confused about squaring Qt and GTK styles), but let's not throw out the baby with the bathwater.