Tor Private Mode leaks TZ info, screen resolution, much more fingerprinting data

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Description of the issue:

At this test site to see what is leaked about the user/browser, https://coveryourtracks.eff.org/ you can see that the user’s originating timezone and screen resolution are able to be known.

Steps to Reproduce (add as many as necessary): 1. 2. 3.
Go here in Brave, release, nightly, etc.

Actual Result (gifs and screenshots are welcome!):
Your TZ, screen resolution, and a slew of other properties are exposed (GPU, etc)

Expected result:
Randomized or false TZ information should be shared with the testing site, along with randomized or slightly modified resolution information and other information.

Operating System and Brave Version(See the About Brave page in the main menu):

Version 1.23.13 Chromium: 89.0.4389.72 (Official Build) nightly (64-bit)

Additional Information:

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