could you try to open it in private mode and disable all extension ?
if it work fine then the issue either in one of your extension so you need to reenable them back one by one till you get the one that cause the issue
or the issue in your cookies so try to clear cache and cookies
On windows 10 with Brave 1.19.92, it works fine with me. I did notice that on some sites they will render differently if the window is too narrow, so I just make my window wider to see if that fixes it.
Did you disable all your Brave addons and then try it?