I can confirm that I have the same exact issue on my system. The same thing happens whenever I click on the links provided. Whenever I scroll down the page and the video player is no longer in sight the screen displays everything normally again. It seems like the issue only occurs whenever I use this browser. The whole screen goes black on sites like store.steampowered.com too, whenever you go on any page that contains a video and you attempt to run it. Might be an AMD related bug since my rig also has components by them:
Yea. this issue made me quit using Brave coz i cant watch ANY video. As NiloticShadow said i have AMD rig too, so it might be AMD drivers fault, to be honest, their drivers were always shit
It seems like its been reported a bunch of times. Used the search engine on here to find other threads with the same exact issue. Users have been complaining since last year so its hard to say whether the fix is on their priority or not. Might have to check out AMD forums at some point and see if people have made any mentioning of this.
Edit: Seems to be fixed on my end after revisiting Steam to play some videos on there. Haven’t had any problems with YouTube videos in a while either.
Some video content in Chrome™ may appear as a black screen or be unresponsive on Radeon RX 5000 series graphics products when hardware acceleration is enabled.