Every design system I've come across contains any combination of:
- rigid inflexible components that need complex overrides even for the simplest cases
- multiple classes with seemingly innocuous names like "col col-8" that get increasingly obtuse and one-off like "uxg-menu-header uxg-avatar-hero-block uxg-avatar" [1] or "fas fa-fw fa-bell pf-c-alert pf-m-info pf-c-alert__title" [2]
- multiple often contradicting css variables (esp. colors)
- ... i'm missing something else, but it's late here and my brain doesn't work ...
