XIAO ESP32C6 Getting Started Tutorial, Seeed Studio, Smallest ESP32

The Arduino IDE examples for Matter (MatterCommissionTest.ino and MatterMinimum.ino) fail on this board because the sketch is too big: Sketch uses 1579565 bytes (120%) of program storage space. Maximum is 1310720 bytes. I’m surprised by this because this device is specifically marketed as supporting Matter. Is there a specific Matter library?