Hey so I'm a developer on the Windows Console/Terminal team - I can answer any questions people might have :)

Does it support true color[1] (direct RGB)? What about BiDirectional[2] text?

[1] https://gist.github.com/XVilka/8346728

[2] https://terminal-wg.pages.freedesktop.org/bidi/

Yes it does support full RGB colored text.

As far as bidi text, the underlying console implementation isn't quite there yet, though it it high up on our radar of things to work on.

https://github.com/tonsky/FiraCode