Youtube Fullscreen in Samsung Dex Mode

Description of the issue:
When using Brave on Android in Dex-Mode with my Galaxy Tab S7, i still have Borders around Youtube-Videos when I maximize them.
Other browsers like Opera don’t have this problem.

How can this issue be reproduced?

  1. Open any YT-Video with Brave in Dex-Mode on Samsung Galaxy Tab S7
  2. Maximize Window
  3. Maximize Video

Expected result:
No Borders around the Video.

Brave Version( check About Brave):

Mobile Device details
Galaxy Tab S7 on Android 11

Additional Information:

I have found a workaround: If I switch YT to the mobile view, fullscreen works just fine.

However, it would be nice if it works in desktop mode, too.