It’s not quite the same pitch, and she doesn’t lower her larynx to make it sound deeper. It sounds to me like she’s letting her voice naturally go up and back down.
Her current way of talking stays lower, never going up. To my ear, it sounds ridiculously unnatural in tone, due to the forced lower larynx position (most people speak with a neutral larynx). It is not the timbre of someone whose voice is naturally that low, but like she’s going as low as she can.
And, in the first clip, where she’s speaking to a large audience, her voice actually cracks a bit, in a way that sounds a bit hoarse to me, which is something that often happens if you push your repeatedly push your voice too low. It’s stressful on the voice.
Her tone is just completely different, in a way that sounds like she deliberately is trying to talk lower to sound more authoritative. I suspect she’s read the studies about lower voiced women being taken more seriously, but didn’t know when to stop. I definitely think she took it too far, to where it sounds affected.