Apparently dynamic brake lights have been standard in Europe for over a year anyway? I can’t say I’ve been able to test. Can anyone confirm?
https://twitter.com/teslastars/status/1292471976162926593?s=21
It has certainly been present since 2020.16.2.1
Have never understand why the brake lights stay on whilst held. My golf did it too. I find annoying as hell when behind people.