Thanks for reporting this. I’m not able to reproduce the issue on my system (Windows 10) though.
What version of Windows are you on?
Do you have any extensions installed/enabled? If so, does it still happen with them all disabled?
Does the issue occur in a Private window?
Does the issue occur if you create a new profile and try it in that profile?
Is anything set in brave://flags ? (Anything with a non-default setting will be sorted to the top, and will have a blue dot next to it.)
Is Hardware Acceleration enabled in Settings? (“Use hardware acceleration when available”)