The reason why this style of web design takes its name from the architectural one lies in the same emotions it evokes.
Interested to come across this after musing on anti-corporate design aesthetics of personal websites. These sample Brutalist web designs are compelling and unapologetic. Punk in their boldness, but too intentional to be anti-design. It’s exciting to see a reimagining of what a website can look like.
A couple typographically oriented I liked:

