https://wccftech.com/download-macos-big-sur-11-11-0-1-final-installer-available-for-all-compatible-macs/

You can now download the full and final macOS Big Sur 11 / 11.0.1 final installer with and without the Mac App Store right now.

After one exciting beta rollercoaster ride, the full and final version of macOS Big Sur is now available to download for everyone around the globe. Yes, everyone. It's not a phased rollout. If your Mac is in the list below, you can go ahead and install the update immediately.