I mean - it is identical, yes.

As far as not seeing those claims, I can tell you its all over LinkedIn hilariously. Also:

https://www.usatoday.com/story/news/2025/01/21/did-elon-musk-do-a-sieg-heil-salute-at-president-trumps-inauguration-roman-fascist-nazi-salute/77845914007/

https://www.msn.com/en-us/news/world/elon-musk-and-the-roman-salute-what-it-is-and-why-it-doesnt-matter-what-you-call-it/ar-AA1xCquO

https://www.abc.net.au/news/2025-01-22/elon-musk-accused-salute-donald-trump-inauguration/104845166

https://theconversation.com/elon-musk-and-the-history-of-the-roman-salute-248032