I think it all depends on what sort of game you have, specifically if it is story driven or immersion/exploration driven.
Halo Reach is story driven and would have absolutely benefitted from a voice. Mass Effect was primarily story driven and the voiced protag worked great.
Fallout 4 is the opposite and a silent protag would have been better as silent, like in Fallout 3 or Elder Scrolls games.
Starfield's Main Character Is Silent So The World Can Be Huge (kotaku.com) angielski
Bethesda also says Starfield’s silent protag was partially inspired by fan reaction to Fallout 4...