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.
This is the first time for me on this architecture.
Thank you for your advices, now it is more clear...
I'll go through the documentation to get maximum performance running code from flash memory.