Just to flag this one, though you may have noticed it already: Arduino support for MicroPython – an optimised version of the language that runs on MCUs – is now available as a downloadable editor.

Portenta X8 receives new Arduino Python container. ... plus an STMicroelectronics STM32H747 dual-core Cortex®-M7 up to 480Mhz + M4 32-bit Arm® MCU up to 240Mhz. ...