I think most everyone expected Mark Zuckerberg to run for president in 2020. There is a substitute and he is backed by the CEO of Twitter, Jack Dorsey.
The presidential hopeful is Andrew Yang. So much for small donors as an ideal to campaign financing.
Yang is the techy candidate many people want in the White House. He is a non-profit entrepreneur, however, his campaign is not self-funded. He has fewer donors than most of the Democratic field, but, those few are often techy execs who want the White House to control government and it's effects on the tech world.