I can identify that you are whonix user with 95% accuracy.

Whonix resolution (1024x768) is very rare

Why this choice? To not require scrolling if someone runs Whonix on 1366x768 laptop?
This choice makes whonix users stand out from TBB users. it’s extremely easy to identify them
If you enable javascript, they will read TBB window size. it’s trivial to read screen resolution from TBB window size. Nobody runs TBB on 1024x768 screen, except… whonix users.

Which platform?

Similar to, applies:

No.