The original question was about the October 2024 Liahona, but answers are referring to October 2024 General Conference (which is usually published in the November 2024 Liahona).
For Liahona articles, typically the text is published first, then a couple of weeks later, audio recordings are added. In that gap of a few weeks between text and audio availability, the only audio option is text-to-speech.
It looks like the October 2024 Liahona audio is available now. Interestingly, at the end of each audio track it reads that the audio was created with AI. I'll bet they magazines team would welcome feedback on the quality of the voices!