He talks more about WSL near the end:

> The Bash on Windows environment is now so performant and well supported that you won’t even know the difference if you move from a MacBook, and Microsoft continues to improve it at an impressive clip.

> Unless you’re using Xcode, your workflow will almost certainly move from macOS to Windows as a non-event: it’s that good now, and I spend most of my time living in the Bash environment without any problems — even with complicated situations like Symlinks inside Bash now actually working fully.