Why yes he did. But also, he did a less obvious one than Musk did, presumably because he wanted to maintain a degree of deniability. Which of course means he's not just a piece of shit Nazi, but also a coward (as well as being a festering ghoul of course). https://www.independent.co.uk/news/world/americas/us-politics/steve-bannon-cpac-nazi-salute-b2702063.html