This includes stuff like easier and faster Bluetooth pairing, passwordless sign-in (with face, fingerprint, or PIN), more kaomojis, DirectX 12 Ultimate, third-party widget support for the Xbox Game Bar, memory improvements for Edge, an updated Notepad, and various new accessibility features.
You will likely get the update in the coming weeks or months. If you want it immediately, it's possible to force the update by following these steps: open your Windows Update settings (Settings > Update & Security > Windows Update) and select Check for updates. Once the update appears, you can select Download and install.