No they haven't. You've likely been misled by seeing still images of their hand in that position, whereas if you see the video, then it's clearly nothing like a Nazi salute. Meanwhile, the video of Musk makes it incredibly clear that it's a Nazi salute and he has not denied that as far as I know.

His politics also seem to align very much with white supremacy and the far right.

Here’s a denial from Musk.

Plus the Anti-Defamation League clearing Musk.

Plus a Democrat congressman clearing Musk.

All this from a left-leaning publication.

The ADL alone should give reasonable people reason to give Musk benefit of the doubt.

https://www.latimes.com/politics/story/2025-01-21/musk-says-...