I can't no longer command line build out of three projects on NCS 2.0.0.
Usually I go to toolchain manager and select "Open Command Prompt".
On 1.x.x versions, it would open a command prompt ready to west build on any directory, even if outside of the NCS installation folder.
That was done calling the \toolchain\cmd\env.cmd that no longer exists on NCS 2.0.0.
EDIT:
The issue can be solved by calling a "SET ZEPHYR_BASE=%CD%\zephyr" command after calling the "Open Command Prompt".
I would suggest somehow automatically setting the ZEPHYR_BASE environment variable when calling the "Open Command Prompt" button.