Physically unplugging it may not be enough and risks permanent damage. Installing a 50ohm terminator is a much safer option on all accounts and takes just about the same amount of effort as unplugging it ( ~$10 extra).

This is the guide I had used for my previous car: https://imgur.com/gallery/step-by-step-guide-to-disable-onstar-on-2022-chevy-bolt-this-is-reversible-not-permanent-n00QKnH#rGSoW34