The control panel to configure narrator voices has been removed from Windows 11. See:
Narrator in Win11 for Read aloud issues... — Logos Community
Vorlesefunktion auf Windows 11 — Logos Community
Please make the narrator voice configurable directly in Logos, and also include the new "natural voices" in the selection.
(So that you know what we are currently going through on German Windows installations, I'm attaching a short video. Turn the sound on.)