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.
All you have to do is to place your .gdbinit is the same directory of your ".cproject"
eg: ~\STM32Cube_FW_F7_V1.4.0\Projects\STM32F746ZG-Nucleo\Examples\GPIO\GPIO_IOToggle\SW4STM32\STM32746ZG_Nucleo