See if I were DMing that I would say that even with a vow of silence, your character would still need to communicate, via writing or body language. So get used to doing interpretive dance at the table!
Of course yes :3.. plus OOC communication for actions. I mean, im joking, but I have considered that character concept, but it would require a lot of effort to pull off for a full campaign
My favorite one-shot was a ranger that was "Stephanos Eoforwine", literally just Steve Irwin. I found a complicated combination of spells that would enable him to have what was essentially a video camera, so he was producing nature documentaries in the wilds of the Forgotten Realms. He was a ranger and had all his stats poured into animal handling. The guy had a +20 animal handling. Half of that bonus came from a homebrew magic item "the shorts of the crocodile hunter."
His animal handling skills were so high, that they were downright reality-warping. During our one-shot as part of a larger campaign, the party met Stephanos. And he was out in the woods looking for some wonderfully ridiculous legendary creature known as the "tree elk." Literally a species of full-sized elk that live on the boughs of trees. I said in character that's what I was searching for, as a joke. The DM had me roll for it. And I rolled a nat 20. Combined with his bonus, he rolled a 40 on an animal handling check to look for tree elk. And by god, he found them. Whether they existed before that moment or not is anyone's guess. But from then on in the campaign we would occasionally see an elk bounding through the treetops. His animal handling skills were so high that with a high enough roll, he could conjure entire species into being!