It says right there in the article that he donates to military veterans' charities and animal rescue charities. I don't see him as a big arts benefactor considering that the main motive the ultra-rich have for making lavish donations to fancy museums is to get invited to the right parties, Met Gala and the like.

He seems like a private person doesn't flaunt his wealth and has mostly avoided inserting himself into public discourse, unlike many of his tech-rich peers.