some-material-icons.woff2 is a subset of "Material Symbols Rounded",

We have made these icons available for you to incorporate into your products
under the Apache License Version 2.0. Feel free to remix and re-share these
icons and documentation in your products. We‘d love attribution in your app’s
about screen, but it's not required.
 -- https://chromium.googlesource.com/external/github.com/google/material-design-icons/
