Simons Foundation also significantly funds arXiv, and also a large number of specific grants across maths and sciences. I don't think there's much agenda here.
The foundation was an early backer of machine learning for science, including funding the development of the Lean proof assistant, which has revolutionized how mathematicians work and made AI-assisted proofs possible. Additionally, the foundation has convened workshops, lectures and collaborations that have brought mathematicians together to explore and discuss AI’s role in the field.
It is right in TFA:
The foundation was an early backer of machine learning for science, including funding the development of the Lean proof assistant, which has revolutionized how mathematicians work and made AI-assisted proofs possible. Additionally, the foundation has convened workshops, lectures and collaborations that have brought mathematicians together to explore and discuss AI’s role in the field.