STM32 devices come with a variable number of SPI peripherals, ... but many sensors like Bosch’s BME280 and related MEMS sensors also implement an SPI interface in addition to the I2C one.

While 100Msps would be impressive for a small MCU, his STM32 certainly isn’t a small one and only his the RP2040 samples at 100Msps, not his STM32. Comparing a 1MHz oscilloscope with a 25Gsps ...