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
Yes, SW4STM32 supports STM32F446 mcus and STM32446E-EVAL board. Are you using this board ? It looks like there is an issue with power supply. Did you change the default position of the jumpers ?