IIRC from reading the book PayPal Wars, Elon wanted to switch PayPal over to Windows because he saw it as the future. At the time, PayPal was on Unix. Max Levchin and the other main programmers didn’t want to switch. The disagreement on platform eventually came to a head and Elon was replaced by the board with Peter Thiel.
If you haven’t read PayPal Wars, it’s a great book.
If you haven’t read PayPal Wars, it’s a great book.