Nearby Share is Google's long-awaited answer to AirDrop, and may formally debut as part of Android 11. However, XDA contributors have found evidence that it may work with other operating systems, so long as they run Chrome. This is because it may have a web UI, which could make it almost universal for file-sharing.
https://www.notebookcheck.net/Google-s-Nearby-Share-for-Android-may-also-be-compatible-with-ChromeOS-Linux-Windows-and-macOS.477029.0.html