I found that this is fixed in Firefox 136, and the shortcut is now disabled too once ml.chat.enabled is turned off.Couldn't update my initial comment with this since my account is new & comment was held for approval
How can this shortcut be disabled? Toggling the "AI Chatbot" option to "off" seems to just get turned back on again when I press the shortcut. I think disabling the Chatbot should remove this shortcut as well