Video playback freezes when new window loads or already opened one reloads content

Description of the issue:
Fedora, Flatpak version, I use daily & checked other Chromium based web browsers - this issue does not occur.
It is new to Brave - well - I see it very first time.

How can this issue be reproduced?

  1. Have one window play video, in my case it’s Prime Video
  2. In another window re/load some content, anything, any website.
  3. Observe video playback freezing, skipping frames, chopping the video.

Expected result:

Brave Version( check About Brave):
Version 1.78.102 Chromium: 136.0.7103.113 (Official Build) unknown (64-bit)

Additional Information:
Anybody else can confirm?

I fiddle a little bit more, it seems that Brave cannot handle Vulkan now?
this:
flatpak run --branch=stable --arch=x86_64 --command=brave com.brave.Browser --use-gl=angle --use-angle=vulkan --enable-features=AcceleratedVideoEncoder,VaapiIgnoreDriverChecks,Vulkan,DefaultANGLEVulkan,VulkanFromANGLE
results in above described issue, this:
flatpak run --branch=stable --arch=x86_64 --command=brave com.brave.Browser --use-gl=angle --use-angle=gl --enable-features=AcceleratedVideoEncoder,AcceleratedVideoDecodeLinuxGL --ignore-gpu-blocklist --disable-gpu-driver-bug-workaround
works fine

But of course, those are need for Brave still does not make use of VAAPI by default.