Normally, you wouldn’t be able to do that without extra parts, but on the ESP32, [BastelBaus] has found a nice hack — just connect your devices to different pins and slightly abuse the ESP32 ...

The C3 is really a blend of the two: a limited number of GPIO pins like the ESP8266, but with nice peripherals like the ESP32. If it’s priced to compete with the ESP8266, it will push that chip ...

Yes there are multiple variants of the System on Chip used in the newly released Raspberry Pi Pico 2. The RP2350A has support for only 30 GPIO pins while the RP2350B can support up to 48 GPIO.