>Beginner friendly doesn't mean that the other requirements disappear.
Beginner friendly includes price. If you have the other requirements, it's going to cost much more. Doesn't matter if it's beginner friendly if a development board costs $5k.
The development board literally costs $100 and the STM32H747XI costs $17 from Digikey. Yes, that's with -40°C ~ 85°C operating temperature and a pretty wide operating voltage of 1.62V ~ 3.6V.
The actual device here looks quite rugged, comes with a variety of useful specs. The Arduino Pro IS the beginner friendly development board, the beginner-friendly introduction to STM32.
A "real" product would strip off all the unnecessary parts and only use the $17 STM32H7 chip alone.
Beginner friendly includes price. If you have the other requirements, it's going to cost much more. Doesn't matter if it's beginner friendly if a development board costs $5k.