This is the most stupid and pointless comparison ever. Also esp32s are from Shanghai, not Spain. STM generally has superior QA, better documentation, and a wide variety of models so you can cost optimize. Esp32 is a one size fits all iot uC. It's much cheaper than comparatively powered stm32s, and already has wireless capabilities built in. It also has heaps more flash. The downsides are is, it's not power efficient, worse QA, and god forbid you have to do any programming outside of esp-idf HAL, because their docs are dogwater. Anyways, they're both great and used for different things.
Espressif is from China
Stm32 all the way.
Teensy 4.1 - 600MHz (without oc)
There’s a new STM32 out that clocks at just over 800MHz
Stm is from italy
Both have there place.
From Spain? RLY?
@RixtronixLAB