XIAO ESP32C3, XIAO Expansion board and servo: example not working


I just got my XIAO ESP32C3, the XIAO Expansion board and this servo:

I’m trying to run the servo example from the Seeed Wiki, and I can’t get it to work.

I verified with an Arduino Uno board that the servo is working fine.

Could someone give me a hint whether the example from the Wiki is supposed to work as-is with the XIAO ESP32C3, or is some modification needed? I also tried to connect the power supply line of the servo to the 5V pin of the expansion board, but this didn’t help as well.