It looks like websites with high media content:
Facebook, Youtube, Twitch, Twitter, Google searches, Mail platforms: Outlook Web, Gmail, Yahoo
So far, it’s only happening in these websites above.
But, I guess you can say it’s being affected platform wide because once the issue occurs you can’t break out of it.
Update Channel dev
It just occured again for me, while switching from open facebook tab to youtube. I was able to break out of it this time by going to settings >> submit feedback (this page). Tried going back to youtube and it’s grayed out.
I will send a video shortly
The browser is being run off the default GPU which is the integrated GPU.
The browser won’t work with dedicated GPU (fullscreening media and videos wont work with dedicated)