I know a lot of people use a torch, but personally I like the skillet. Seems less fiddly and generally faster for a steak.
Maybe I’m just paranoid and missing out on some flavor but I don’t cook anything other than fish below 135F to kill any bacteria. https://www.amazingfoodmadeeasy.com/info/sous-vide-safety/mo... (Update) I’ve seen other reliable sources suggest 130F for 2+ hours is safe.