Development tools for Zephyr on STM32Workbench for Zephyr: VS Code extension to set up, build, flash and debug Zephyr applications on STM32.Devicetree manager: browse, edit and visualize Zephyr devicetree, STM32CubeMX-like for Zephyr.
Well you are probably right that past knowladge of Eclipse would be usefull but, the question which still remains is, why code generated by CubeMX and imported without any changes to SW4STM32 doesn't work and could not resolve many symbols ?!