Huh, can one natively edit Markdown in Google Docs? This would be one of my main requests for gDocs (as a long time NvAlt/NvUltra daily driver), but how?

There are sorta two separate features:

1. Notion-style realtime "autocomplete" for heading and inline formatting Markdown

2. Full Markdown import/export and copy/paste

These features make Docs interoperable with Markdown, but don't make it a Markdown _editor_ in my view.

Anyway, you can enable the features from Tools > Preferences > Enable Markdown