brave-browser: No audio output in Google Meet (blocked by autoplay)

Description

When joining Google Meet there is no audio output. If I join using Google Chrome then I hear audio no problem. I have compared Google Meet settings between Brave and Chrome and they are identical, so this points to a problem with Brave itself.

It has always worked for me in the past but the recent updates to Google Meet that were released may have caused this issue to occur.

Test plan / Steps to Reproduce

1. Open up https://meet.google.com/_meet in Brave
2. Click the settings cog in the top right
3. Press “Test” next to the Speakers setting and you should hear no output

Actual result:

Audio should work in Google Meet.

Expected result:

No audio is output in the speakers when using Google Meet.

Reproduces how often:

Always.

Brave version (brave://version info)

Brave    | 0.64.77 Chromium: 74.0.3729.169 (Official Build) (64-bit)
Revision | 78e4f8db3ce38f6c26cf56eed7ae9b331fc67ada-refs/branch-heads/3729@{#1013}
OS       | Mac OS X

Version/Channel Information:

~I have not tried.~ I can reproduce this issue in the Beta version too.

Other Additional Information:

• Does the issue resolve itself when disabling Brave Shields? No.
• Does the issue resolve itself when disabling Brave Rewards? No.
• Is the issue reproducible on the latest version of Chrome? No.