It would be great if instead of selecting dialogue options by navigating to them in the menu, we could speak out the lines into a microphone to have them selected. I reckon it might make the lack of a voiced protagonist a bit less obvious, and it would fit well with the game's D&D origins.
A modder has already achieved the same thing for Skyrim before:
https://www.nexusmods.com/skyrimspecialedition/mods/16514?tab=description