> I honestly don't know of a big tech company that is happy with the idea of just continuing to use C++ indefinitely
Every game company ever. And Google.
Every game company ever. And Google.
ChromeOS as a product? Maybe. (note: not Chrome)
ChromeOS platform internals? I totally could. You don't just rewrite everything from C++ to Rust, because that wouldn't make much sense, but more and more new service/products are being spun up that use Rust (we have docs and stuff https://chromium.googlesource.com/chromiumos/docs/+/master/r...).