I got this at Amazon and it works very well with 3.5mm wired earbuds to the USB-C port, even the microphone.

USB Type C to 3.5mm Female Headphone Jack Adapter, JSAUX USB C to Aux Audio Dongle Cable Cord (Red) https://www.amazon.com/dp/B07XYNSXR8/ref=cm_sw_r_apan_glt_fabc_X6TRD8DH1M5KFYZDGPZM?_encoding=UTF8&psc=1