When you select text on a web page and right click → “Speech” → click “Start Speaking” it reads the text in a voice other than what is selected in System Preferences.
For example, in macOS 10.15.7 (Catalina) I have “System Preferences” → “Accessibility” → “Speech” → “System Voice:” set to “Siri Male (United States)”.
Brave, for some strange reason, instead uses Alex to read instead of this voice.
Can we please get this bug resolved?