I'm using Brave Browser version 1.25.72 Chromium: 91.0.4472.101 (Build officiel) (x86_64)
My agent string is :
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.101 Safari/537.36
On version 2.1 of WhichBrowser/Parser-PHP they show me : Chrome Dev 91.0.4472.101 on macOS Catalina 10.15
On version 2.1.2 of WhichBrowser/Parser-PHP they show me : an unknown browser