@mattches may be able to help. He is a member of the Brave support team.
I can’t help, but thought I would pass along information that worked for other users with sound issues.
Update Brave and OS to latest version. Use Brave official releases.
Make sure all audio (and video) drivers are up to date.
Check OS sound settings.
You might want to see if the same behavior occurs if you create a new test profile. You can then delete the profile. You could also try installing Brave Beta and Nightly versions and see if the issue persists.
Thank you for reaching out. This may be a Linux specific issue. On my end, I just tested my Windows machine — connected Brave to both my monitor (with built-in speakers) and my smart TV and played content on YouTube and Netflix which both worked without issue.
On that note, can you confirm that this behavior happens no matter what sound is playing out of the browser (that is whether you’re using Youtube, Spotify, Netflix, etc)?
I’ve also reached out to some of our Linux team for additional information. Appreciate your patience and hope to have an update for you soon.