Zephyr Workbench, a VSCode extension to manage Zephyr on STM32.
It enables users to easily create, develop, and debug Zephyr applications.
Main features:
Install host dependencies.
Import toolchain and SDK.
Create, configure, build and manage apps.
Debug STM32.
You can directly download it from the VSCode marketplace
For more details, visit the Zephyr Workbench
In your “Ac6 STM32 Debugging” profile, go to the “Debugger” tab, then in the OpenOCD setup, try to select “Manual Spec” and choose the ST-Link/V2 as device and the SWD as interface.