There are advertised features of Teslas that are vaporware, but it’s a stretch to call them vaporware. xAI is also very real. Others have mentioned SpaceX. He bought Twitter/X but that’s not vaporware either. Neuralink is also real. The Boring Company has only dug 2 short tunnels so far, so the case can be made for calling that vaporware.
He owned a company that merged with Confinity, which had already built a prototype of PayPal, registered trademarks, etc. at the time of merger.
He was made CEO. For four months. Which he spent trying to throw out the prototype written in Java because he only knew ASP.
Then the board fired him in absentia, the morning he left for his honeymoon. Not asked him to resign, not "focus on his family", but the moment he's gone, fired his ass.
Musk's contribution to the non-vaporware PayPal is "cashing the dividend checks".