Funny have done a very similar hand gesture when giving a small speach at a going away party. Anecdotally, I don't have a manager any longer as I have retired from my career due to a chronic illness that has effectively left me disabled BUT I do play a few songs every Friday night (tonight) and I will do the exact same guesture and say exactly what Elon said when I leave :-)

Saying “I give you my heart” and then making a gesture of giving the crowd your heart is not a “nazi salute”. If that is a nazi salute then Hillary Clinton and Alexandria Ocasio-Cortez have both given “nazi salutes”.