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.
Nowadays I don't have much time but I have tested a very simple project (using STMCubeMX ) with HID and MSC classes in HOST mode.
The discovery was able to detect and enumerate a mouse and a USB memory stick.