Using the latest beta build, when I access this site: www.ros.org through the default https: link it displays incorrectly (it’s obvious when you see it.) When I access it through http:// it displays correctly. As Mac Safari behaves the same, I assume this is not a Brave bug, but I thought it was worth mentioning anyway.
Could you provide screenshot of the actual results and expected result
Looks good on my end on all Brave builds. What do you have your Shields settings configured to in your Shields panel?