Hello!
I think this issue affects all JS applications for a GIS/mapping company called Esri. When opening our applications in Brave, we get an error in the console:
“WebGL support for high precision fragment shaders is required but not supported.”
I can reproduce this on the Brave Beta as well. Hopefully your fix addresses our issue too! Here is a link to a CodePen where you should be able to reproduce the issue. I do not run into this issue on any of the other browsers (Chrome, Firefox, Safari, etc)