There is Lato Math available on GitHub (although not on CTAN): https://github.com/abccsss/LatoMath

There is Lato Math available on GitHub (although not on CTAN): https://github.com/abccsss/LatoMath

Edit:

The fonts have been revised and released on CTAN in 2024, by Chenjing Bu and Daniel Flipo, as the package Lete Sans Math: https://ctan.org/pkg/lete-sans-math?lang=en